with my ex it was like that, but not with myspace.
someone told me not long after we broke up that he was 'playing the field', and that hurt. it hurt to think of him with so many girls. of course, that also makes him a complete **** but meh.
i thought there was a glimmer of hope when he did set up a myspace account just to talk to me (i'd blocked his emails and msn), eventhough he just said 'so much for being friends eh?'.
it was a few months later when i joined facebook when i saw a picture of him laughing with some girl. i knew he had a new girlfriend at that point, and that really hurt. it was just the initial shock that he was happy with someone else. he always told me that our breakup was hard for him (bull**** in my opinion) and i had hoped for a long time that we would get back together. after seeing that picture, well, after the initial shock, it didn't bother me. i closed my facebook account though because i didn't want him contacting me.
it was hard, but the thing was i had found someone else who i was even more happy with. i'm guessing that my ex would have reacted the same way if he saw me with someone else, despite telling me to 'go and find someone better' blah blah.
i heard just before they broke up from uni, that he had his ass dumped by his girlfriend. that makes me smile. it shouldn't, i know, but now i hope he knows how it feels to be unloved by the one person you love most in the world.
op, once you find someone, and your ex sees you with them, no doubt he'll have a hint of jealousy too. i wouldn't worry about it.