how many times has this happened? it sounds like a few from your post...which is odd - its none of his business
do you have a history with someone he knows?
i would suggest as others have said, to avoid him - if nothing else he is rude, and if he is questioning your past based on rumours and judging you, then probably not worth being with anyway
ratter - i have heard many blokes feel the way you do, but how do you think women feel thinking about all the girls their man has had?
works both ways and i have discussed this with mates before and it seems that when you break down that number into years etc its usually not very many at all
i knew a guy once years ago who was fuming to discover his girlfriend had had 10 blokes - to him 10 was loads - she was a total *** in his eyes and he was going to split up with her -
however, she was 30 and when i broke it down into how many over say, 14 years, it works out about one every 15 months... hardly the level of a streetwalker is it?...
if you work it out like that, even 20 is not a lot
nothing compared to some men
it is also 2012 and attitudes to sex are very different - having sex has nothing to do with morals any more - you can have very strong morals but still enjoy sex ...that is just an old fashioned prudish attitude of society that is thankfully dying out now.
not suggesting that women should go round having sex with anyone that moves, but any that choose to should not have their right to a boyfriend or husband or a family lessened or be treated badly - they are people like anyone else.
most girls 'reputations' rarely match the gossip anyway