Over thinking?

Being an introverted person in the midst of a large group of friends, the lockdown essentially isolated me from any form of social interaction whatsoever. Before the lockdown, however, one of my friends used to incessantly call me everyday. I almost always used to ignore her because we used to meet every single day and I would come up with elaborate excuses to avoid her calls. Bless her heart, she still calls me everyday. Since the lockdown, the one thing keeping me going is her calls. Now I'm paying the price of my lies because her words make me love her (hopefully, platonic) and I don't know why. It hurts to know I'm not the only one she calls because she is the only one I talk to anymore. I fear that I love her but I'm only one of her many loves. I also fear that I don't understand what my own love is. Am I overthinking this?