Well haven’t you see the previous episodes ElleAnne ?
Teddy was sexually assaulted by some drunken women on a hen night… in the ambulance when they shut him in It traumatised him and he was trying to tell one of them, that they had abused him unfortunately ( can’t remember her name) the nurse he had been dating overheard and got the wrong end of the stick and thought he was involved with the awful woman.
It really wasn’t anything complex but obviously if you hadn’t seen the previous episodes it wouldn’t make sense