to email or not to email

backstory: we met. he didn’t follow up for two weeks. out of the blue calls and practically invites himself to nye. we go on a sober date and we have nothing to talk about. he texts and leaves a voicemail asking to see me again. both of which i’ve ignored.

i say, i hate when guys disappear and think sending an “hey thanks but i don’t think we have much in common email” is the nice thing to do.

c says the rejection email always comes off cocky and i should just ignore indefinitely.

thoughts?