ExH and I have only been separated a couple of months and he's had a new gf for over half of that time 
He's just come over to pick up DD and showed me his shit new tattoo. The tattoo is on his back, which was covered in raw scratches, clearly a souvenir of recent shagging.
He must have known that they were there, and he didn't need to show me his tattoo, I just feel like he's trying to shove his new relationship down my neck.
It's not that I want him back, he was a crappy husband and I deserve and want a lot better for myself, but I can't help feeling a bit hurt that he's moved on so quickly and is rubbing it in my face like this.
What do you think? Am I being a bit over sensitive?