Yes, I absolutely believe you can be in love with two people at the same time. The way you manage it all depends on the people involved. Some people are OK in a plural relationship, other's are not. For myself, I would rather know about the other person, than have my lover sneaking around behind my back. It's all about the honesty for me. I've been in an "open marriage" where my husband had other lovers, both male and female. He never lied to me about his intentions or made any false promises. We were very happy together for eight years till he passed away. I've also been married to a man who would sneak around behind my back, lie, make promises he never intended to keep and in general, made a fool of me at every opportunity. After five years of his lies I finally had enough and showed him the door. What was the difference you might ask? Honesty. My first husband never lied to me, the other one did nothing but lie to me, and had a completely secret life. I can't stand a liar.