Best Friends Should Be Best Friends

I have had one best girlfriend since I was five years old. Her name is Jen, and she rocks as a best friend. She's more or less the ultimate best friend. Now, the reason for this is because girls are mostly stupid, or inconsiderate. They'll stab you in the back any chance they get and they'll play mind games with you until your head implodes.

(Keep in mind imploding is way worse than exploding.)

Just this year, I met another humorous girl named Amanda. We studied for the exams together and the rest is history, she became my other best friend. However, I am wondering whether or not to call her my best friend or not anymore...

Shady Things Amanda Has Done:

1. Offers to babysit, then criticizes my parenting and makes me feel guilty.
2. Says she'll pay for her cat's food I was looking after, but doesn't
3. Asks Mike and I to help her move, makes us do all the work and vanishes when lifting is necessary.
4. Secretely bitches about me behind my back. (Got you back fool.)
5. Gets mad about me giving her back her cat, and hasn't spoken to me in a week.

Yeah, it's actually not a lot listed there, but there's more. What should a best friend do? I know with Jen, we could not talk due to our busy lives of sitting and doing nothing for months, talk and act as though we never stopped. 

I swear, most women are pussies. GET OFF YOUR HIGH HORSE!