Actually, I think a love triangle is A > B > C > A
Kind of like an unrequited menage a trois.
I think what you have is just bad judgement when it comes to men. Present company excluded, of course.
I see that; but I also think a love triangle could be a relationship between two people who absolutely MUST draw a third person into the conflict for some reason or other. MUST have that third person as a scapegoat or to put on a pedestal or to do a three-way with then talk about that person behind their back....I dunno. Some people just like the drama of the Other that can be blamed or worshiped or ignored, due to how the two main characters are feeling that moment. I'm usually that kind of third.
And I'm not getting any better at picking men to admire. Currently, I admire Dexter. If he were a real person....we'd be together, gleefullly killing everyone we deemed kill-worthy (stick to the code!)