Oaf. Pox on him then. Good riddance to bad rubbish.
OTOH, it is good that he said this up front, and this soon. I still say, the bum!
I think you are taking the right attitude, frankie, but I'd amend it a trifle, and say.....for now. I can only speak from experience, but I know that when I "gave up", and decided that I wasn't going to long for, or even want (another) relationship I not only felt better about myself, but was more content in general. It's when a person reaches that level of contentment with themselves that they give off the vibes that attract a person of the same mood or frame of mind.