The smiles on Pete Davidson and Ariana Grande say it all ... they're ecstatic together, and anyone hating on that, well, Pete's got a special message for ya too.
Pete and Ariana were hanging out in NYC over the weekend ... and they're practically inseparable at this point. The happily-engaged couple were all smiles and Pete had a little fun with paps ... cheerily flipping 'em the bird.
They moved in together and the digs are pretty spectacular ... it's a $16 million New York apartment in the sky!