if you are blind in someones love then nothing matters . as you have said that u have not made bad choices the go forward with your decision and hope that your luck does not runs out.
if you are sure that he is really in relationship with someone then you should stay away from him, but if u are not sure about it then u should try and meet him and clarify the things. Try not to get involved with person who is in any relationship it can be painful .
if you are in relation with someone ,then it is cheating.
shawshank redemption, The Dark Knight, hp1,2.
never ever get tired of seeing them.
just too good.