Self-doubt

I was talking with my friend today and her boyfriend was very rude to her and said she was just like her friends and that she was probably going to cheat on him.. Well she asked who he meant because she and I have a pretty well behaved group of friends and he said one of the "bad" friends was me.. He said I was a whore and that I'm an awful person for her to be friends with.. I've had a steady boyfriend for a year and before that I had kind of slept around for a bit but it wasn't all that much and it was with people I knew really well so I was just wondering if he was right.. Am I a whore for having more than one partner in a few months or is he just being really mean and trying to upset me and her?