Is this really so wrong if it makes us happy?

Well, it should tell you something important about your "committed" bf. He gave his word, regardless of how you both feel, to another woman and then stuck her with 3 KIDS. If he feels strongly enough about his word and his feelings for you he would do the right thing and end the relationship and move on. I would stop getting involved in other people's affairs, it is their relationship, not yours and not up to you to decide, sorry. I don't know why you would even want to get involved with some guy who is cheating on his gf, with children involved regardless of how you both feel remember he felt that way about his gf who he knocked up with three kids and is now leaving her hanging, what if that would be you one day, oh what a mess, get out now. There are plenty of others out there and in the meantime he can do the right thing by getting out so you can move on or maybe fix his relationship that he is neglecting because someone else is taking up his time. I rather think it selfish of both of you because of the kids involved. leave that man alone he made his bed don't let him fool you into making you lie in his bed with him! How can you try and break it up sounds like she's still involved and if he isn't anymore than he moves out and on and then starts a relationship. What he is doing speaks VOLUMES about his character, remember you can fall in love with bad people too, just because you are in love does not make anything more right or more wrong. It just means you are in a bad situation with a irresponsible, immature person who you love. scary