I’ve ruined my relationship

I completely destroyed my relationship with one of the best person I’ve ever met. I love him sooo much, he is an incredible human being and I’ve turned him into a cold hearted person. We were together for 3 years. Things started to go down hill just a little but it wasn’t a big deal that couldn’t be fixed on my end. Because he started to feel neglected by me etc. he started to become a little distant with me. We would still talk all day everyday but I knew something was wrong with him. Being the crazy overthinking, anxiety filled, abandonment daddy issues type of person I am, I started to panic. He wasn’t going anywhere but I started to make up scenarios in my head that everything was over. I was so dramatic and even fell into a depression and told him I wanted to off myself. Poor boy had to deal with his own feelings of feeling neglected as well as my feeling. I even started to manipulate him in a way(not on purpose) and the whole thing just because so toxic. Then it got to the point where he just couldn’t handle it all at the time so he wanted to “take a break” just to be able to breath a little. Of course I didn’t take that well either!!!!!! Then started bothering him all the time. Its like I couldn’t control myself. Fast forward 3 months later and he’s now so cold. I feel like I’ve ruined him and put him through so much mentally. I feel terrible I love him so much but I don’t even want to be around or talk to him because I don’t want to ruin him more. Helppppp have I completely ruined this or is there another chance. P.S. this is all looking back at how I’ve acted over the past few months. And he really loves me but is frustrated at the whole situation.