I miss him so much

So they’re is this dude we will call him “Austin” and I broke up with him because I wanted to explore my sexuality more and not have to tell him I was lesbian if I did decide I was because I was kinda feeling like I was…. I have now decided I am Bi with a preference for girls and this is the one and only boy I have EVER loved this much. Every night I think about him and I can’t stop having dreams about him he was so sweet and he was the best boyfriend ever. I don’t know if he likes me still and I don’t wanna ruin our friend ship that we just started rekindling from our break up… any tips?