Sudden apathy towards my dog

I know that I love my dog. She sleeps curled up with me every night and I spend a lot of time with her during the day. She is very very needy, she gets really bad separation anxiety. To the point where if I go lie down for an hour in bed and forget to bring her she will have an accident on the floor through stress. I adopted her knowing she is an older dog and has separation anxiety but not knowing how bad at all. I’ve had her quite some time now and I have felt like she’s the perfect dog for me and we’ve been very close.

But the last couple weeks I’ve been really struggling with how demanding she is. I had a really tough week with her where she kept making more mistakes than usual, even to the point where she was going out of the room I was in to potty on the floor. And she’s been destroying a lot of my things and barking at me a lot. And I got so fed up one day I just really had a moment where I was like I don’t know if I can do this anymore. And ever since then I just don’t love her. It sounds horrible. I know logically that I love her but I look at her and i feel nothing, I don’t want her to sleep with her at night anymore and I don’t want to cuddle her during the day. I just feel like I’ve snapped and I can’t feel anything. I’ve been forcing myself to try reconnect but I the love isn’t coming back.

Im too scared to tell anyone how I feel in my personal life because they won’t understand me. I confided in a close friend after they noticed I wasn’t myself and they told me im cruel and I should rehome her because the dog can tell how I’m feeling.

Has anyone experienced anything like this before and/or have any advice?