i had a long distance relationship about 8 years ago. it was a flame from a long time ago, he called me out of the blue, and i was in a relationship that was going nowhere. so we started seeing each other, and he lived with a woman and her son, but they were on the outs. i visited his house, saw they slept in separate bedrooms, i was understanding about it. She finally moved out, after we were dating about 2 years. I don’t think she knew about me, they were incompatible from the way it sounded. He was a real nudge so he probably annoyed the crap out of her, and he was very negative about her son, so that probably did not help anything, either. Anyway, she and son moved out, and now we had the freedom to be together more. It was Christmas vacation, i wanted to visit him. He was very discouraging about my visiting him, he had all kinds of reasons why it would not be a good thing. I thought to myself, something is weird here. I know the woman definitely moved out, but maybe he is seeing someone else, because this is a time when he should be welcoming me to come visit and he is not. So i broke up with him. 6 months later i heard he was marrying someone totally new. Obviously he started seeing her while he was still seeing me. He and I spoke a few years ago, he told me he started seeing his wife in the fall. Since he was married six months later, obviously “the fall” was the fall that he and i were still dating each other, hence my instincts were correct and i was happy to be done with him.
I am not trying to be discouraging, it’s great if you have 100% trust in the person and from the posts here there’s definitely proof that it can work out. However, i would proceed with caution.