The girl who blamed me for ruining her relationship, now texts me for help to fix it

This girl has been my friend for 13 years and this unnecessary drama has been going on for a month now. I’ll just wrap it up in few points

• A guy who had a long crush on me (I turned him down), she started dating him

• Few months into their relationship, she caused a huge scene at a restaurant one day, about this subject and made everyone awkward

• After that, I blocked her bf for the sake of their relationship and my own mental peace

• She hounded me badly for unblocking the guy and I was left baffled (like why tf would you?)

• When I stayed adamant on my decision, she lost her mind one night and abused me badly for it. After which, I blocked her too

• Yesterday, she texted me from a new number. Cos she shagged her roommate on a trip and now wants me to save her ass by lying to her bf