Brief facts: 60 odd texts from my DH to his single ex-girlfriend in the last three and a half weeks. Mostly sent after 11pm. Five or six some nights then none for a few days (I.e. not just two per night). Every single text, plus replies, deleted. I found out cause I saw his phone bill. I don't know if it's been going on for longer, as I only saw a current phone bill.
Aibu to think something must be going on?