why does it feel like there is always something?

Lately it feels like there is always something happening to make me anxious. Just yesterday my boyfriend told me that our friend and her fiancé are moving to a new apartment in Pennsylvania where my boyfriend lives (I live in New Jersey). They have always lived in pa together and my boyfriend is going to help them. It’s nice and all but I’m afraid he’s suddenly going to decide we should live in pa instead of North Carolina. I don’t think I want to live there either. I’m building a new life for myself here in New Jersey. I’m joining new groups and making new friends. I’m discovering who I am and I don’t want to leave that behind. And yet, I feel even more selfish than ever. I remember saying before that, I wasn’t sure if I saw my relationship with my boyfriend going anywhere but that dosent make me feel like any less of a bad guy. I want the freedom to live the life that I want to live but I feel like a monster for it. Why does it feel like every time there seems to be something that causes anxiety for me? How can I get it to stop? And not have to feel like the bad guy anymore?