Should she message her ex pretending a friend sent it?

So my homegirl is grateful for her High school ex. She wants him to know how grateful she is that he broke up with her but doesn't want to do it flat out. She wants to message him but send it as if her friend sent it. When they were together she was lost and confused and started a hoe phase after they broke up. That led her to another relationship and eventually she blossomed and has 3 businesses. She's being sincere when she says she grateful and she's really changed. I don't know, I'm kinda like, why not girl, you flourished and she did all the work, but it was this dude setting her free. Another part of me is like, nah he a fuck boy.
Should she message her ex pretending a friend sent it?
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