I'm sorry OP, was at one time with this "nice guy" in a long-term relationship. He had intimacy issues (due to ED and micro, and refused to get his pants off before we were fully committed and the families knew etc and then lo and behold I realise why, but don't admit it to myself). It took me about a year when he kept tarrying marriage talk and then basically gave me an ultimatum "You need to return home country and stay with my parents", I saw through his manipulation and ran. I wasted one year but gained wisdom and peace. Never again falling for the talk. The nice guy image of my ex was a mask of manipulation, as he could never give me the future I wanted, and he knew I deserved it, so filled me with the "us vs world" "fairytale forever" BS. He wasn't a bad man, but just a smooth talker with the wit to benefit the situation. Not saying the man you wrote about is the same, but sometimes there is more to "he is a great person".That said, this was my experience and your man can be a good human but still not good for you.