I dont know what to do ADVICE PLEASE

My boyfriend and I got into a big fight because he used to make me feel like i was his world, and slowly he stopped. Now he makes me feel less valuable. We had a “serious talk” I asked him if he still wanted to be with me. He said nothing, just “he doesn’t know” i told him is there another person of interest and he swore there wasnt. I asked do you like someone else and he said there was no one else”

Then, told him since “he doesnt know” what he wants then maybe we shouldnt be together anymore. He fully accepted it and he finally talked and only said “i feel like breaking up is the best for us right now” and i asked why and he said “because im afraid of doing something stupid” i asked what and he said “cheat on you” it hurt me sooo much and i just needed to walk away. I told him ill give him his space and i gave him one last kiss. Our kiss was so meaningful, a kiss that i haven’t felt in a long time and as he kissed me he said “look at me, moving on so fast” he kissed and kissed me which led to sex in the car (something that i have always wanted) we finished kissed each other good night and are still together. But now my demons and doubts are coming out again and are fucking with me in my head and now im uncertain about this relationship. I love him i want to be with him😔😔😔