Avoidants come back if there were slight incompatibilities?

Im not sure what type of avoidant he is, id say fearful cuz i think he has both anxious and avoidant style but more avoidant. We broke up because there are a few incompatibilities (he rarely paid for dates, asked for money back many times, gets rlly stressed when I ask him to travel with me) but in my pov they are easy to fix… the problem here is that he also has depression. We werent doing so well after he didnt get me a birthday gift and we ended up breaking up but i quickly realized it was not what I wanted. He was the one who didnt want it back. He said he “couldnt do it” which crying his eyes out in public and caressing my face for hours. Said i deserve to be happy and i deserve someone who wants to travel with me. He said im the one he has loved the most and even tho he wasnt a very romantic person, i could see his little efforts to be closer to me qnd that showed me how much he loved me. Even after breaking up, i gave him a handmade keychain and he put in on his backpack which he carries to university daily. He says he “unfortunately” still wants to be friends with me so he doesnt lose me i guess. 3 weeks aftee the breakup we were still in contact and he stalked my priv insta that day (he doesnt have insta btw so every time he sees my stories i know he had to dowbload it) and he saw that I was going out. A guy kissed me against my will that nighr. The next day my ex asked me if I had been with someone in a jokingly way and after ignoring his question 3 times I answered the truth. He was very caring and understanding that I was basically lowkey abused but said it felt like a dagger to the heart to imagine me kissing someone else and that he felt like throwing up of feeling so bad. I went to his house and we ended up sleeping together for many hours. He was desperately hugging me tight, asking “what do we do now”, and stopping mid kissing to say “why is it so good” with such a sad puppy face. After this episode he drove me home the next day and we never texted again. Its been 3 weeks now… i figured he got scared of the way he felt so good with me and is now avoiding all feelings at all cost. Not sure what to think of this, i love him so much ive made it clear all relationships have work to be done. He thinks he will stay alone forever but i told him he will eventually have to put the effort for someone and it pains me it wont be me. He was jusr laying there, hugging me while i talked. He listenened. He couldn’t speak about it tho. But yeah im so lost i cant move on. Im wondering what he is thinking, maybe he is focusing on the small incompatibilities and convincing himself that he is not enough, or maybe he misses me? I dont know I wish I knew… it pains me, i cant accept if its over