I straight up asked him if I was the one and he didn't answer

I'm 29 female, been in a "relationship" with a male of the same age, long distance. I broke up with him two months ago because I've had enough of his shit treatment, I won't go into details but I really put up with a lot of neglect and bad mannerism towards what u think of as ur "girl". When I broke it off, I was sure about my decision and had no regrets, but fast forward a few weeks, and he came back wanting to be together and to be a better person and realising he loved me. I didn't wanna give it a chance until lately after a call, however the day we got back together, I got crazy anxiety and I was on the verge on a panic attack, I shared my feelings with him and straight up explained what I really want out of the relationship and what I want him to be( making me a priority in his life basically), he was like u know I can't promise anything and some things don't have an answer and if I do answer I'd be just lying to you, I said no it does have an answer and in your heart of hearts u know if I am the one. He didn't answer that. What's bugging me is that despite his inability to express some kind of guarantee to me that he won't fuck me over in the future, he keeps posting close friends stories where he expresses feelings of missing me or some shit Td:lr, this is long I know