AITA; for confronting my Father and his girlfriend about their loud sex?

Hi I’m F(21) and just over a year ago moved in with my dad, I would like to get my own place but the country I live in has a really bad housing crisis. We don’t have a normal father-daughter relationship as he wasn’t in my life until I was in my mid teens, if anything it’s like a roommate situation, I work 5 days a week pay rent, buy all my own groceries,cleaning products etc. I cook him dinner occasionally and keep the place clean. This arrangement works pretty well but… his girlfriend. She didn’t like me from the very start always treated me like I was competition…. For my own dad (very weird I’m aware) she would always victimize herself whenever she got a chance, she made out that I hated her when truth was I hardly knew the woman to have any opinion never mind hate her. She does not live in the house but would be here 4 out of seven days a week, recently in the past couple of months they’ve started having really loud sex (my dads room is right next to mine and has a very squeaky mattress). The first time this happened I left the house and returned later, telling my dad that I heard them both and it made me really uncomfortable, he apologized and life went on until the weekend after that and the same situation yet again, I left and sat out in the garden uncomfortable and pissed off (nobody wants to hear there own father do the deed!) I confronted him yet again telling him please to shut it or at least turn on the tv so I can’t hear anything, again apologies again no result. I’ve never approached his girlfriend about this because she’s “a very shy woman” this is her excuse for not speaking to me, I assumed the topic would make her hate me more and make her extremely uncomfortable which is not my goal.

This bring us to date: I had a really hard and long week in work and was really just wanting to relax over the weekend, I was watching tv when my dad came coming in and out wondering when I’d be finished in the sitting room him and his gf wanted to watch tv (I guess she can’t be in the same room as me or something) so I told them both the tv was free and headed upstairs to read. A little while later they came up to bed (I like to listen to classical music while I read). I was tired and slightly grumpy and then the great nasty familiar sounds came thudding on the wall, I hired my music up fully blasting bloody piano all around the house but no avail I put headphones in no help either I knocked on the wall, still no let up. I left yet again sitting in my back garden at 1am freezing cold only returning in 2 hours later, I went to bed and was still utterly pissed by the time I woke up. I decided to make a group chat with the both of them in it and sent the following message

“hi guys, so I think it’s quite unfair that I’m constantly hearing the both of you have sex ,I’ve put headphones in,played music really loud and banged on the wall and I could still hear you both this is not the first time where I had to physically remove myself from my room and sit in the back garden to avoid hearing yous, I’ve explained and expressed how uncomfortable and disgusted this had made me feel in the past and it has repeatedly fell on deaf ears and I think it’s really disrespectful and unfair. I’m a grown woman and wouldn’t put either of you in this position. there is other options to explore like getting a memory foam mattress and turning on the tv. Could you both please be more respectful going forward, thanks.”

She sent a thumbs up (pissed me off more) and my dad responded “I apologizes “. A little while later I was painting my nails and my dad shouted from downstairs for me to “come down for a second”, I knew what awaited me I felt like I child being called down for a punishment, I went downstairs into the kitchen and politely said “good morning how are we ?” Attempting to approach the situation respectfully,She sat at the table and began with “ so I don’t do group chats or text messages so I won’t be responding to that shit if you have something to say,say it to my face” , I bit my tongue and replied I wasn’t sure how you would feel if I personally approached you so I thought it best to say what I had to say and leave it there” ,I can’t remember the conversation verbatim but she spat snarky comments throughout the whole thing I done little talking as I was restraining myself not to go crazy, key bits that stick out “I’m not having a 20 year old something control my sex life, I don’t care if you are his daughter” , “ we are always respectful so get that out of your head” , “your always home so where else are we going to do it” (I am not always home as previously stated I work 5 days a week I’m out of the house 7am-8pm most days) , “I’m not a teenager and I won’t be spoken to like i am), (sex between a loving couple is not disgusting don’t fucking tell me I am),”you knocking on the wall is very childish, you’ve made the point of getting out of bed so come knock on the door”. She also made a point of telling me how “tame” they where in comparison to usual I told her I really didn’t need to know any of that.I responded saying I understand sex is completely natural and I don’t care what you both do as long as it doesn’t involve or affect me but at this point it has, so what’s the solution to fix this?. They had no solution of course and my father just stood in the back of the kitchen saying nothing as she snapped her red face at me. I went to my room and that has been it.

I understand it’s his home, and YES sex is very healthy and needed in a relationship, if it wasn’t for the situation at hand I’d be happy for him at his age still getting a bit. But I feel like it’s just common decency not do pull this shit out of respect of others, keep in mind they don’t even kiss in front of her children.

Moving out isn’t an option at the moment and neither is fully avoiding her or their sounds. I don’t think what I had said was wrong or out of line or anything that would have caused her reaction, if anything I would be embarrassed if the roles where reversed. I’m open minded so PLEASE let me know, did I do the right thing ? Should I have even said anything at all ? Am I the asshole!!!