I believe what our illustrious Phuturephunk meant was that the ACT of repeating the same cycle, in this case trying many incompatible relationships in attempt to find the right one (even IF you know its wrong to begin with), is part of the cycle in fending off pain until one reaches happiness. Because, as we all know, even in incompatible relationships, there still are moments of happiness that are attained. These small moments act as an opiate to mask the pain. Another thing: Humans love to repeat cycles that are known to them. Choosing several bad relationships quickly in a row, a trait that is usually endemic with people who are chronically prone to bad human entaglement is the easy road out, the path of least resistance so to speak.