My friend has been with this guy for about 3 months and yesterday he was in a huge fight with him dad... he told her " i love you..but i have to go i have to think now..."
She keeps thinking he is going to break up with her because he keeps standing her up(4 time in a row) and every time she says I love you he says "mhm" or "you too" when he used to say I love you first
I personally think she should dump him for standing her up but she does love him and she doesn't want to leave.
What do you think she should do?

Please don't be offended but this is so third hand it is impossible to give meaningful advice. Your friend needs to do the asking.

It's their problem and for sure there is nothing YOU can do about it. But the way he behaved aftr their fight can also mean he cares about her too. If he needs to think about their relationship then let him do so.