In love with 2 men

Okay girls.. I’m in love with two men and can’t help it.

They both have amazing qualities.. only thing is, I’m in a relationship with one of them but always fantasize about this other man that I’ve had off and on relationships with.

I don’t know how to tell my now boyfriend.. he’s a great guy just not the guy for me.. help because I really do love him, I just don’t see forever with him.