Anyway, a few months ago I noticed a girl on his Facebook being quite flirty and inappropriate so I brought it up calmly and he agreed and said he thought it best if he didn't speak to her again. (She's 16 and he's 21). I saw a few weeks ago that they'd talked on Twitter but I forgot about it & now I've seen a huge conversation on a post on Facebook between then where she's sending hearts and calling him hers. He knows that it upsets me but still does it. He's emotionally cheated before. I'm not allowed to talk to any men or even have whatsapp. I think I might break up with him cos it's really upsetting & there's a lot of other factors involved.