If you want to have a successful and long term relationship, you've got to be faithful, trustworthy, respectful and have a frequent communication with your partner. Communication is the best thing in a relationship, which allows people to say whatever is on their mind. Sharing ideas is also a good thing, for it shows how mature the two of you are.
I let her come and go. I want to get married but you cannot tie her down and make her stay with you. Girls have a mind of their own and if you are lucky enough, and she loves you she will stay with you. If you think that you can make her break up with someone that she does not want to break up with, she is not, and you will look stupid. People that needed a mob to threaten girls to make them stay with you are probably ugly