This is how the conversation went with my mom...

"Weren't you just talking to Amy?"
Yeah.
That was quick. What is she doing tonight?
Going to Alli's.
"Well didn't she invite you to Alli's?"
No
"Well, why didn't you ask if you could go with her, you know, make an effort?
Well if you want me to go and get drunk, then I will!
::I called Amy back, she was definately drinking::

Hence, I am still at home. I think that I am going to go and take a walk.