Did any of those know each other for more than six months? I think the bad part is they didn't know each other (relatively speaking) before they got involved. Its bad when you learn while in the relationship. 'Cause then the quirks are a surprise. But if those quirks are prestented outside a relationship, i.e. friendship, they're easier to shrug off and get used to. I just think its easier to get involved with someone you already know pretty well. Sadly most of the people I fall for feel differently, and its a case of "waited too long" (which I think is more of an excuse and cop-out) and I land in the friend zone. But I know if I were given a chance, relationships would last a lot longer than the average because we'd know each other. Which is precisely what happened with my ex-. Friends forever, and then an awesome relationship.