Which episode is the one where they have this grill party, and it's a note that gets passed around, and everyone gets the wrong message. and it's all cause of a boy, who's mother is dating Danny.

tht episode is called the Secreat Admirer and it's in Season 4..btw the boys name is ricky(i think...yea) hope i helped!

episode=secret admirer
mothers son =rusty

The Season 4 episode about a love letter getting around and everyone getting the wrong idea is called Secret Admirer. The name of the boy who typed up the love letter is Rusty, the son of Danny’s girlfriend Cindy. He got the idea for the letter after he saw D.J. with Ricky, the paper boy, and was instantly both intrigued and inspired to spice things up a little (but in a good way, though).😊

Finally, after Jesse got everyone calmed down and کہا someone had to have written the note and he wanted to know who it was, Michelle کہا she knew the letter writer’s identity. When asked سے طرف کی Jesse who it was, she pointed out Rusty; Rusty initially denies it, but then changes his mind and admits he was lying after his mother says his name sternly, and adds he wanted D.J. to think it was a love letter from Ricky.

After everyone apologizes to each other and Rusty asks them if they can take a joke, they glare at him, causing him to realize he still hasn’t learned his lesson from the last time he pulled a prank at the Tanners (as a callback to the Season 4 episode Terror in Tanner Town). With that, he takes off, with everyone chasing after him (except for D.J., who stays behind until Ricky arrives).