Delema

I met my boyfriend online 4yrs ago and we've been seriously dating long distance for 2yrs now. He told me he is divorced, and has two grown children. He refers to everyone in his family by their actual names, even his ex-wife. I am so in love with him and believe he is my soul-mate .. we talk everyday and text through-out our days and see each other frequently despite the distance, we do weekends and weekdays together etc. Few problems .. 1) never been to his place, nor met his kids.(2) I found out that his last name is bogus and actually discovered his real sur-name and to my surprise .. he is very much married. He tells me every day how grateful he is to have me in his life, how much he loves me and I tell him the same as I am head over heals in love. I so badly want to call him on my discovery but dont know how too ... I don't know his situation at home and the story behind and why he feels he must lie to me. I so badly want to believe that he honestly does love me .. but now I have doubts ... what should I do and how do I go about this... (guess the bottom line is ... im not ready to lose him)