I'm in my mid 40's and a loving person, yet I seem to run very hot and cold when it comes to my friendships, both in person and online. There are days where I can't WAIT to respond to an online friend's message and feel such positive energy and attachment to her, and then there are other days where I want to fall off the face of the cyber earth and never speak to her again. What's up? (I don't have mental illness).

thanks !