I put "Never" because I've only been in one serious, long-term relationship and it ended badly.
My workaholic, very serious fiancee found out she would be graduating from college the morning of September 11th, 2001, right before the planes hit the towers. She was furious that all her friends (actually my friends, I introduced her to the group, she had few friends before meeting me) considered "some buildings falling down" more important than the fact that she was graduating. Then she got even more furious when she found out that I was seriously considering dropping out of college to enlist in the Army (which a lot of people were doing on Sept 12th). We didn't break up immediately, but our relationship went downhill, she kept finding excuses to not be with me, our conversations usually ended in arguments as she insisted that nobody cares about her because people disregarded her graduation announcement, and that I didn't care about her because I was willing to leave her "to fight over a pair of buildings". Things limped along for months, until one day I called her house (she still lived at home with her parents at age 23 and after graduating college) and got her father, who angrily shouted into the phone "[name] isn't here and never call here again!". Apparently she didn't have the nerve to break up with me in person, so she decided to have her dad break up with me for her.
Since then, the few times she ever came around our gaming club (where my friends I'd introduced her to were), she would always begin any conversation with anybody by attacking and insulting me (and we were rarely at the club office at the same time). Even though we broke up over 3 years ago, she still apparently takes the time to stop by occasionally largely to bash me to anybody present (and if I'm there, to just sit there quietly for a short while and leave). It got bad enough that once, one of my friends stood up for me when she was telling a blatantly wrong version of prior events (which he knew to be wrong because he was there to see the events in question) which portrayed me as an insensitive, uncaring lout. He called her on it and told what really happened, she responded by threatening his life, storming out, and IM'ing me with death threats against him. Wanting her to get help, but not in police troble, I turned over a printout of the IM's to the father of a mutual friend of ours (who is a psychiatrist), and apparently she got some form of intervention or warning about her tendencies to make idle death threats.
Amusingly, she wants to be a lawyer.
