Why did Angelina marry Billy Bob? I just don't get it?

she probably loved him --- and I bet the sex was great.

that's totally old news, and its because they are both weird, they used to wear each others under wear and they like getting tattooed and had a lot of weird stuff in common

Because she was in love plus they had great sex.

Angelina Jolly might look like a very beautiful woman but she is much more than that. She definitely has a dark side with all the naughtiness and kinkiness. Billy Bob is alike, so they were a perfect match to each other for a while.

Actually, I find something about Billy Bob Thornton attractive. He is not an attractive guy per se, but he has a mysterious quality, there's just something intriguing about him, a depth that transcends the obvious, I'm not sure I can explain.
I'm sure she saw something in him that others don't.

crack

it was just her "into older men" phase that's all.

She obviously loved him a great deal. She was "crazy" about him, hence the blood vials, rowdy sex, stealing him away from his fiancee Laura Dern, etc. You say you don't get it but there are plenty of couples who don't make a picture perfect couple. She's just a woman after all and he's a man. Perhaps she was looking for an older father figure since she and her father Jon Voight are always on the rocks.

because angelina is THE DEVIL & billy bob is into that.
plus the fact that he was about to marry someone else when she snatched him up....probably trying to prove something to herself..or somebody.
who knows..but she is the devil..that's for sure.