Commitment Phobia??

I met this guy online and we started talking..cant imagine we were penpals for 2 years! When we finally decided to meet.. it was amazing. I felt such a strong chemistry for him and I thought he felt the same way too. Apparently maybe not. He took one week to contact me, then we went out together and again great chemistry and stuff. On our fourth date ( prob 1 month later) , he kissed me and held my hand after we had some wine.. and I thought it was only because we were both sloshed. On our 5th date.. we went out, and we basically let loose after some wine again and starting kissing each other on the deserted roads which i felt was so romantic haha. Then when i kinda sound him out on where this is going as we were behaving like a couple already.. he told me he has commitment phobia. WHAT? sigh. he says we should jus let things flow and see how. I see a lot of red flags in my mind as he said that. Its as though someone tells you there's a hole in the ground up ahead, but yeah lets jus keep walking and see if you will dropped into e hole. If you did, at least i told u so already upfront. Damn.. i really dunno how to handle this going forward. I'm not asking him to commit to a relationship now, as i also think 5 dates probably is too soon, but the fact that he tells me he has commitment phobia is making me very uncomfortable.
Should i jus treat him like a fling too and jus dun invest any feelings anymore, or is my leverage just to leave right now and dun waste my time. I tried telling him my concern but doesnt seem like he get it or cares..
Actually as i type this i think the answer is pretty obvious. :( I just feel sad that i felt such amazing connection.. as I dun like people easily.. and finally when i thought the person has finally appeared.. it's jus sad that he doesnt feel e same way.