You can wake him up its no big deal as he knows he has to give you a ride home - he would probably wake up anyway while you were trying to make other arrangements.
You should try to be friends with him/her. And treat him/her with respect.
Why should you do anything? A person's love life is their own business.
screw their dog
absolutely nothing. don't worry about it
If possible, yes, you should try your best to stop your friend from attacking another person. However, if your friend is attacked first then they will have to defend themselves.
When a friend has fallen out with another friend individuals should not pick a side.
Uh... No
No, it would be wrong to do this and a bit perverse in nature. Unless you have their full permission you should leave alone.
"Who's your best friend?"
Unless the ex boyfriend was part of the problem then no, you should not involve your ex boyfriend while resolving your problems with your friend.
the person is clearly bored and you should find another person to go out with that is worth your time
yes! if you trust your friend not to get angry. Your Friend should accept the fact that your have other friends and that you have a right to be friends with other peope as well as just her.