Should I tell a girl in my friend circle that the guy she is currently dating tried to force himself on me in 2021?

She's not actually my friend but she's in my circle so we know each other well and get along socially.

She recently started dating this guy who tried to force himself on me during end of second lockdown in 2021. I didn't make a big issue out of it because he didn't cross any line he was just been to touchy with me that day when we hanging out together where he even placed his hand on my butt and asked if I want to kiss him.

Should I share this with her? Or should I just mind my own business?

Should I tell a girl in my friend circle that the guy she is currently dating tried to force himself on me in 2021?
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