How do I tell my friend I'm in love with her hubby

Photo:Courtesy

I am 27, single and work as a teacher in a nursery school. About two years ago I met a parent who made me fall in love with him. I was in charge of his child and I became quite close to him as well as his wife. The relationship has been going on all this time and now I am getting concerned that she may find out someday.

She is one of my closest friends and I would not want to hurt her this way, but I also love this man very much. What can I do to handle this situation? I care about them both but this man is ready to marry me as a second wife. Please advise...
{Laura}