This guy I went on 5 dates with told me he wants to either end this or for us to be serious

I told him “I’m not sure” because this sub told us to keep em at arms length and also cause I don’t trust him and felt like he just wanted a relationship for sex (left his previous gf of 4 months cause she didn’t want to)

Everything seemed fine and he said he just doesn’t want to be many dates in and have me be unsure, so I told him I’d let him know next time

This morning he texted me and said “I thought about it some more and I think this is over. Sorry to have to tell you over text, I didnt want to wait until next week”.

I’m so confused, is this guy just manipulating me?