How long have you and your girl been together? Do you love her and want to be with her? My suggestion is write out a list of things you really want to tell her, also a list of everything that has made you fall in love with her. Call her up ask if ya'll can meet some where and talk. Sit her down, tell her everything you want to say and everything that caused you too fall in love with her. Then let her say the things she wants to say. If this is a mature adult relationship, when ya'll say the things you need to say go from there. In any kind of relationship you need to talk if something is bothering you, don't let it build up inside (that is what will cause you too say things you don't mean) If you think it is worth fighting for then fight damnit!!! don't throw down the towel just yet.