Feel Like My Relationship Is Doomed To End

I don’t know how to move past this feeling. To make a very long story short, I moved interstate to live with Mother in Law because our roommates decided to do stuff in the house without our knowledge, which we found out after a year of fortnightly hospital visits trying to work out why our son was sick. Partner had to stay because of financial commitments and couldn’t afford to suddenly not have income indefinitely. Due to feeling abandoned he cheated on me multiple times.

2 years later and I know he’s incredibly sorry for what he did, he’s done everything I’ve asked to help move forward (things suggested from Affair Recovery) and if we took the cheating out he is beyond the best partner I could possibly ask for and he is an incredible father. He’s never tried to blame me for the infidelity and we got down to the most likely reason why it happened after a few deep and meaningful conversations.

Our relationship is even more amazing now than it was before the infidelity and I can’t even explain how much I love him. Despite this I can’t get over the thoughts that we’re in a doomed relationship. We’ve just bought a house and are engaged to be married but I still have this feeling that it’s all going to end. Either because I get sick of not being able to trust him when he’s around women and leave or because he gets sick of me not being comfortable when he goes to visit his friends in a nearby town because I know his exs want to get with him.

I’ve told him about these feelings and he said he hadn’t thought we were doomed and he doesn’t want it to feel like we’re doomed and he said he’s sorry for ever putting me in this situation but I still don’t know how to move past it. I’m not angry or upset about it most of the time but when something happens that normally wouldn’t have affected me before but now I get upset by it it just makes me angry all over again that he’s put me in a situation where this thing upsets me.

I know that not “once a cheater always a cheater” doesn’t apply to a lot of instances and he’s done all the right things to show that he’s actively working on the things that led to the cheating but I just can’t get past it. It sucks that an otherwise awesome relationship may be tainted forever because I can’t move past it. I don’t even know if there’s a question here, really.