This is what I was afraid of.

Ruby, I hope you will go back to the list I gave you and the advice others gave you about behavior in the work place and focus on that.

This GM was not a close relationship. He was not even your direct supervisor. He was someone at work who was nice to you. He made it clear on numerous occasions that it was no more than a work relationship in the way he kept boundaries with you (when you said you'd miss him and he said he wouldn't miss anyone, etc.). You need to let go of this before it gets out of hand again, and focus on doing your job well.

Go to NAMI and get support there. Look for places outside of work to make real friends and let your co-workers be co-workers.