Everyone thinks i was mean to her?

[Toughseashore634]

Ok so I dated this guy 2 1/2 years ago when I was 14 he was almost 18. I'm 16 now. I lost my virginity to him a month into the relationship and I was his first on the second date. Now he is dating another girl they have been dating 10 months she's 19 and he's 20. so I wrote her on Facebook "hey slut, you like his penis in you don't you? Haha you just love to spread your legs for him don't you?" i heard she got so embarrassed she couldn't face anyone at her church. No I'm not jealous I dated another guy last year so I have moved on. what do you think of all this? I said it cause i think she is a slut lol