What if your bestfriend stops wanting to hang out with u?

Don't worry about it. :) friends have arguments all the time and it always feels like it's never going to be the same but it will. She probably just needs some space or you need something to tie you both together again?! Ask her if she wants to go out or do something. If she doesn't want to then Back off a bit, she may just need you to lay off a bit. It will be fine though.x