Well he must be angry because of everyone talking about him and accusing him of having something to do with his daughters disappearance... but thats just a guess. Everything you read about him, whether its here or at other forums people bash him. (he's this, he's that, he's poor, he's abusive, he's a druggie) His daughter is missing and there is NOTHING he can do that will be right in the media or publics eyes. Maybe he don't have respect and isn't very polite because noone shows him respect, or is polite to him. (Lets be honest here, we all read what everyone says about him on this forum and others)
I find it silly that people sit here (or the media, whatever) and say things like "omg he's getting married, what a jerk... his d is missing, I would never do that" but how do you know what you would do in THAT situation? Are your children (this is general, not directed at you or anyone in particular) home safe in bed? I bet they are, so you don't know what or how you would react in the situation. No matter what you say or think, you just don't know....
My first thought was good for them. Maybe this has brought them closer. (Struggles pull 2 people closer) and they wanted to get married and commit to eachother, she is 17 its not like shes 14 or 15... I honestly don't see what the big deal is.
Congrats to them.