I told him this hurt me.
Now he has been kissing/dancing with her in front of me.
Most Helpful Guy
Well that's because he thinks that you can't have feelings for him, or he knows what you both had wasn't actually a relationship so you shouldn't be having feelings, so he thinks why should it affect you whatever he does.
Most Helpful Girl
It sounds like he's moved on. Either that, or he's enjoying keeping both of you interested.