Advice ?

I haven’t been in a relationship since early 2019. I’ve been on a few dates during covid. But I haven’t gotten butterflies with anyone yet. I know I’m having a good time but I don’t know if it’s enough. I don’t know if it’s because I’m such an introvert. Sometimes it gets a little heated up and we make out and I’m like wow I’m having a good time but the next week I’m like well that was fun and then I’m over it. Ive met some really generous people but I’m like is this just a friend or a potential partner? I want a relationship? but I’ve been alone for quite a while I’m not sure how to get back into it or how to allow someone in ? If I’m just not feeling these people?