Jonathan Davino hasn't been seen around many women since his relationship with Sydney Sweeney ended ... and, though he was spotted with a famous TikToker Saturday night, he's defintely not dating her. Backgrid

Here's the deal ... Davino -- seen here in a white shirt and blue pants -- attended the Saturday Night Live after-party where he was spotted speaking with Morgan Cohen and a mystery brunette.

Photogs captured him walking swiftly toward a car with the group ... though he didn't stop and take questions -- which made some wonder what his relationship to these ladies might be.

Sources close to Jonathan shut down any notion of romance with Morgan or anyone else though ... telling us he's not dating anyone these days -- and, he's not looking either. Backgrid

That's in shar

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