<human>: My first relationship ended 4 days ago after a 5 month long span due to 'romantic issues'.I know my ex joined Tinder the day we broke up and that she has already slept with another person she met on there. It destroys me inside to think shes already slept with other people and what makes it worse is that she is in my social circle at uni, I always see her texting multiple people she met on tinder etc every time we meet up (which is often because of lectures). This is also taking a toll on my school work and my sleeping pattern is also destroyed.I constantly think about how fast she has moved on and that all the times we've had seem to be irrelevant and are now being created with other people, especially the sexual side of things. I was just wondering if this is a normal feeling to have after a relationship or im just being a cunt?

Cheers in advance and sorry for the lame question, just needed to get it off my chest. Please ask questions if I bollocksed up the story!

Can you condense the text into a few key points?
<bot>: Very recently broke up; Ex is getting railed by people on tinder already; destroys me inside to think about this; Am i being a cunt or is this normal?