<human>: Can you provide a brief overview of the text?

Me and my fiance have been best friends for 10 years, and have dated several times.  This has always ended with my fear to/inability of commitment.  However, I've grown up a lot since high school and realized he's really the only person I would ever want to marry.  He's the only person I can't be without.  We've been doing great, even though he's stationed on the opposite side of the country.  Texting daily, and skyping almost every night.  We were working on planning a small quiet wedding, as we weren't going to tell people other than our families until we had time/money to have a big wedding.  Recently he's been fairly distant, and pulled away even more when I asked why he was acting strange.  He then started talking to girls whom he knew were interested in him, and were clueless to our engagement.  
When I told him this made me nervous, he told me I was being ridiculous, and that they're interest in him doesn't mean he's interested in them.  When I tried to ask if it was okay for me to do the same, he literally laughed and told me that was different.  I asked him if he could not talk to them as often, or at least tell them he was in a relationship.  He never really gave me an answer, other than if he didn't talk to them, he wouldn't have anyone to talk to.
I discovered later that he baby mama threatened him with never seeing his kid if he didn't move her and his kid to live with him, and marry her, he'd never see his kid again.  That partially explained his actions, but not completely.  I'm not sure if I'm over reacting here, but I am absolutely furious.  He has not only continued to talk to these girls, but has been hanging out with them behind my back and telling me that he's busy or not in the mood to talk.  I love him so much, but at this point, I'm done.
<bot>: Fiance and best friend of 10 years is being shady as all hell and doing things he knows I don't like.  Ready to call it quits.