Have you ever had a friend that disrepected you by flirting/cheating with your significant other?

Let me start off saying she's not my friend anymore!

I had a female who I called my best friend. I helped her through her addiction, break-ups, her mom kicking her out and etc. I was there for her no matter what.

She pulled the wool over my eyes.

I've always known she had insecurity issues but to where she had to sleep with every human being that payed any attention to her? She slept with my garbage of a boyfriend. Not only did I lose a friend but my boyfriend of 5 years.

FIVE effing years.

They're both disgusting human beings. They've both blown up my phone with texts I don't even care to read and phone calls I'll never answer. I'm packing up his shit and giving it back in a mature manner. I rather burn it all or throw it off a bridge but I don't want to pollute the earth nor give him any satisfaction of hurting me.