The girls need to know that they are worth fighting for.
To me that is VERY important. in my wifes case her father rolled over and died and to this day she has man / father issues and feels like shes not worth fighting for. He didnt care enough to tango with her mother etc.. he justed walked away. I dont wanna beat the guy up tho I kjnwo how her mother can be lol but at the same time there is something to be said about it.
Both people in the situation can make mistakes and all tho just do your best to make sure your side of the street is clean etc..
but yea its pretty important from what i've seen to a girl that her father is willing to go to bat for her.