How can we both heal?

My past relationships have really left a scar on my current behavior and I can be a bit toxic sometimes. I find it hard to trust people. My boyfriend currently has done nothing for me to think in any way like this but all these negative feelings r just being rubbed off my my old problem

A few months into dating he decided to break up with me because I was always causing an argument. So I told him that I will work on myself and I'll prove him otherwise. and I have been and I know I have but I found it hard since I didn't have many people to turn to. I used to be in his friend group and I would talk to this guy mainly so I can keep in touch with my ex at the time but one day he said he wanted a full break up and I was devastated. I decided to go to his place because I didn't wanna go home and I drank and I felt so hopeless. I can't even remember specific details but ik something bad happen. He did something to be I feel I couldn't have stopped and my boyfriend knows this and everything. I do not have any feelings for this other guy and when my boyfriend found out he felt horrible like how a normal person would feel like. eventually he decided to get back with me and I've been working on a lot of stuff on myself.

it's been a few months since what happen and I went for vacation to see my family in my home country and yesterday he brought up that he thinks about it everyday and that he doenst know what to do anymore. I feel like I did everything to make myself a better person but I can't figure out how to fix this particular issue it seems so hard

he said even if he tried it hard and I try too I just need advice on how to fix it. I don't want to break up with him and he doesn't either and I love him lot. so don't come here telling me to break up with him cause we both really don't want to. if I didn't love him I feel I wouldn't have gone through all this pain for the past few months. I wouldn't lie online

How can we both heal?
Post Opinion