mom is annoyed?

So my mom went through my Facebook messages and when my mom and I were angry at each other I said to my bf "these last 4 months are seeming longer and longer" (in 4 months I go off to college)So mom is annoyed because I am excited to go to college, get away from home, be around my bf, and start working on my future. She even cried about it because she feels I'm leaving the person who raised me for a boy when that isn't the case...😐