8. Staying in a relationship out of convenience. Whether it’s because you don’t want to disappoint your families with a breakup, or because you have concert tickets in six months or whatever, staying together just because you feel you should only leads to bitter resentment and an inordinate amount of fighting and heartbreak, when there was a chance you might’ve been able to remain friendly.
9. Manipulation. This is tricky because it’s often so subtle and you don’t realize your partner is manipulating you (or you’re doing the manipulating) until it’s way too late. As reallybigleg wrote, “the relationships that have left me ‘broken’ (both of which I left, by the way, so this isn’t a case of heartbreak…) have been through gradual loss of self esteem during the relationship through a process of manipulation by the other partner.”
10. Jealousy. Even without actual cheating, just the suspicion that it’s always happening can be much, much worse.
11. Presenting a false version of yourself at the beginning. This can be as simple and small as pretending to like horror movies when you actually hate them or as big as saying you’re not looking for anything serious when, in fact, you are. It’s best to be upfront from the get-go, because those little things can become huge reasons to break up over time.
12. Staying together because you’ve become codependent. “You’re together because you’re codependent and neither of you wants to be single,” wrote beaverteeth92. Or in other words, you don’t have chemistry anymore and the only reason you’re together is so you don’t have to be alone.