Should i text him?

I want to text my old situationship and tell him how much I miss him. But about a month ago i had blocked him due to his inconsistency and how much it was bothering me. I even told him how I felt and he didn’t answer, which was fucked up to me and I felt i didn’t deserve that and forced myself to move on. I saw him at a party last weekend and we spoke and god i miss him so much. I didn’t say that to him i just acted as if i am unbothered but he hurt me. He’s just not good for me he makes me feel anxious and not secure. We were a thing for about 9months and i never really knew where we stood. I don’t think i should text him but idk feelings are getting the best of me