Checking if I'm being unreasonable. Over 21 years ago I guess I might have been a cheat. I was seeing someone but made the decision to move abroad. It was only going to be temporary and I planned on staying faithful. He wasn't happy and said if I went we were done. I didn't want resentment in my life or regrets (also due to person issues I needed to get away) so I told him this and went.
I didn't hear anything from him when I was gone initially and assumed we were done. I started then sleeping with a local man (unbeknown to me he had a long term partner/wife) let's just say it was all physical as his English was v basic and I was similar with his language.
Anyways the UK guy then got in touch asking how things were and how I was doing. I was honest but didn't mention the new guy. He then asked if he could come for a visit. I agreed and at that point stopped with the other guy. He came for a visit but treated it like a holiday, we did have sex but no quality time. He flew home and no discussion was made about us, after how things went I assumed we were done again and started up with the local man. Uk guy did send the odd email (had to go to cyber cafes to check) and we kept in touch.
Anyways I then discovered local man had a wife and continued to sleep with him (19yo with a man in his late 20s youngest) before breaking it off - for me it had run its course. Fast forward until I came back to the uk. I got back in regular contact with the Uk guy and we went on to have a long term relationship. He cheated in the end and that's why we broke up. I was very young and honestly didn't think I was cheating and as for the being the bit on the side again I was young and consequences don't always go through your head (for the majority of the time I also had no idea -naive maybe having never been invited to his). Did I end it when I found out no so I guess I was in the wrong.
Anyways fast forward to now, I'm in a new relationship and this situation came up now it's caused a huge fight between us as I didn't admit that I was in the wrong. I also think that an affair is down to the married/etc person and that the person they are seeing is pretty innocent. I also think it's not all black and white and there are areas of grey. I also know the person that is in a relationships/married can lie and make things sound awful at home etc.
My beliefs now are that cheating is wrong and it's not something I would ever do and believe communication is key. I also know now if I got involved with someone that had a partner etc then I would walk away and likely be the person to tell the other exactly what had been going on.
So my current partner and I fell out over this. He feels like he could never trust me and that our beliefs are very different. He's not understanding that I was young and stupid and that communication wasn't really a thing, he thinks that I was cheating on UK guy and that i had no regard for a family I could have broken up. This isn't how I seen it at all then, I thought I was single and I guess as a teenager that the married thing maybe didn't register.
My question is AIBU to expect him to accept that this is my past and I was young and stupid. We had very different lives back then, I was living it up abroad and then as a student, I stayed with my parents etc I did have a BF but in no way was I doing the happy families thing. He was the total opposite and I guess maybe at different life stages despite being similar aged. He's now not speaking to me and says it's a red flag to him and is unsure about us now. He seems to think that I have no issue with cheating and would do it again. The huge difference is I'm a grown woman now, I realise that communication is key and that by speaking to a partner that lots of hurt and upset can be avoided. Also to this day was I cheating? I don't know what the relationship was back then (video calls/mobile internet etc weren't a thing) random emails just catching up and one visit in 9 months ? I also would never knowingly get involved with someone that was married or had a partner and if I did then it would be ended as soon as I knew.
I'm now questioning everything including my new relationship (if it's still a thing). I am trying to give him space. Have sent a message but so far no reply.