Accidentally saw a video of my ex

I can’t stop shaking and crying. I forgot to unfollow my ex’s friend on instagram, and the friend posted a video of him and my ex taking shots together. He looks so happy without me. He’s wearing the shirt and watch I got him last christmas but it also looks like he’s wearing a new bracelet. He doesn’t typically wear jewelry so I’m assuming it’s from his girlfriend who he made it official with after a month. He fell out of love with me after a 4 year relationship and left me in early August. We went NC on august 20th and haven’t talked since. As soon as I think my heart has been broken and it can’t get any worse, there’s always something that makes it shatter a little more every day.

I hate that he’s happy without me. I hate that he’s able to live his life as normal because he grieved the relationship before leaving me. I hate that I’m hurting so bad over a man who is with a whole new girl and probably doesn’t even miss me. My night is ruined and I don’t know what to do