So I was talking to my FP and we were arguing over something very dumb but at some point I almost told them that I was in love with them but I didn't because I'm literally terrified if I do I will lose them forever.

Thing is the relationship is tricky, sometimes it feels like they might reciprocrate the feelings but then I don't know if this is just a strong friendship, but the last thing I want to do is lose them or something. Right now we're still arguing over the previous argument but I'm scared something broke or that I made them feel bad over it. What should I do? I'm sorry about the way this is vaguely worded I just feel like I'm working myself into an anxiety attack about this because my abandonment issues are kicking in.