My name is Chris and i just started to date my good caring friend Marie. She had asked me out which i am happy about but she has/had another bf when she asked me out.. I'm worried that he may try something against me or her or she may not be faithful down the road.. But i really Love Marie and i want us to be happy and i want her to be loyal and faithful. Can someone give me some advice on how to keep her happy and to keep her loving me