Well lets see here.....i can only speak for myself....and i am married...and bi as well. however...i guess im more bi-curious...cause i couldnt have a loving relationship with a women.....friends and sex yes....love no...thats just me...however on your points:
I think people can do whatever the hell trips their trigger. Different strokes for different folkes. If you want to love a guy, go ahead... I don't think there are any emotional boundries... I think society places these boundries on us. As far as I go though, I just love women too much.
I'm been in a relationship with a bisexual man for the past 3 years.
He's married to a wonderfull wife, has 3 kids, loves them.
We get together a couple of times a week, he's my bitch and good at it.
His wife is ok with it, has girlfriends of her own.
I'm happy with it, glad he has a wife and kids, glad he's happy.
It's all good. Complicated, but good.
You just have to be mature enough to not get hung up on jealousy toward the other partners.
Even if all that is true......I still like em.....of course i don't think its true.....although I have no special place in my heart for bi guys...but if they like dick I guess its thier preference...just as long as they don't touch mine