Am i over reacting? 😔

Been with my partner a good few years, we split up couple of months back but when we talked he said about us getting back together but our sex needs changing... Anyway nothing else was said about it, but the other day he said the sex feels like a routine its always the same etc it gets boring but I don't know if I'm in a different room when we have sex 😂 but I've never felt it was boring, I was like oh OK I really didn't know what to say and felt hurt 😒