Her friend told me she said this?…

I’ve been posting here a lot lately and I just really need help because it’s very hard to get through this.
So it’s finally the 23rd day of no contact with my ex , lasted 3 years and 4 months, & today was the day I finally came back to school due to a break we had.
So lately I’ve been really happy, I’ve been trying to change and just be a happy person in general. Today was a normal day and I woke up with an extreme happiness and just didn’t want anything to ruin it. During one of my classes my friend came up to me in which she had to tell me something that my ex told her to tell me.
She said and quote ” tell him to stop being immature and grow the f*** up. Telling people sbout our bussiness and posting sh** on Twitter trying to act like he’s the innocent one when in truth he treated me like sh** and doesn’t deserve me. He wasn’t there for me at my worst and he certainly won’t be there for my best. He is so abusive and an asshole to me the whole time. He will never change and I want him gone for good. I deserve the world and I will find someone that deserves me and appreciate everything I do for them. Not him because he never appreciated me. ”

We’ve been together for 3 years and 4months, yes I was demanding because she always liked guys during breakups and in the relationships, and I couldn’t let anything slide. I haven’t contacted her for this amount of time and she does this to me? Now I’m back to being down and just feel like complete trash. Everybody says her new guy she’s talking to is completely ugly and im so much better. But my ex claims he treats her like a princess.

Any help on this situation? I really need help.