Rubbing salt in the wound....

I made the mistake of looking at the ex’s Facebook account and now see him playing happy families with his daughter and SIL (back from the USA) having relocated to the UK. I’m feeling sick...he dumped me last month and now I can still see his mug and how happy he is....
I hate him so much...I feel used....
I was useful when he had no-one and now that he does...I’m disposed of...

So unhappy tonight...it’s hurting so much ...advice please, anyone..