Most Helpful Girl
Agree with Timothy. A long-distance relationship is difficult to maintain and the bottom line is that both people have to put forth the effort; you just stated that your girlfriend is not doing that. You feel you are being used, that she doesn't take responsibility when you have disagreements, and to top it all off, you suspect she's cheating on you. All of this makes you unhappy and justifiably so. You've tried talking to her about it to no avail. It's clearly not working out so I suggest you cut your ties, move on, and find someone worthy.