He married her for a green card

I fell in love with a man that is married. I Know I know! I didnt know he was married until a months into the relationship(we live in different states) . She is 41 he is 34 and I am 28.He was not an American citizen until he married her ...so I think some of you can see where this is going.I met him a few years after the fact. He didnt mention that he is married. We had been talking for about a year. He was supposed to be and currently still plans on seeing me this next upcoming week. He said he wanted to talk to me in person so we could discuss some things and that he was afraid to lose me. (This was a few weeks before his WIFE contacted me) Now as you can imagine my feelings are all in the air. I've already fallen in love with him 😢. I just dont know what to do.theres more to this story but it's already so long so I'll just get to my question....Am I wrong for how I feel about him because I still want to be with him? His wife obviously wants to be with him too and I can understand her too but ...I just dont know. Has anyone been in a similar situation or knows of someone who has ? Or knows what it's like to be foreign and do what he did so I can understand? Idk anymore please help!