Do you believe in monogamy?
odd question... of course monogamy exists
but for me, monogamy fails as a healthy relationship choice - every monogamous relationship i've ever had has ended less than well, and often it was my fault
sometimes it would be because as i got more comfortable with the person and the new wore off i'd subconsciously sabotage the relationship, in a few cases i actively cheated, and in other cases my partner turned out to be a total ass but i got involved with him/her because i wanted to be with someone
anyway, these days i wouldn't get involved with someone who insisted on monagamy; i am not wired that way and i don't need to cause myself or anyone else pain
otoh, for those of you who are monogamous and it works - i'm glad you're happy and in a healthy relationship
my only request is that you stop judging my relationships - they work for us and while it may require a bit more effort and communication and a lot more trust than i see in many monogamous relationships, we're quite happy and content (and we get to have our cake and eat it too - which is a most excellent thing in my book)