Pete Davison Will Not Do Any Jokes About Ariana Grande and His Relation Ship on 'SNL'... She Felt Betrayed

Sources close to Pete Davison and Ariana Grande say that Pete won't reference their breakup when 'SNL' airs, saying the exes have an agreement to stay silent.

It's reported that the split was mutual, and Ariana and Pete verbally agreed neither would talk about it publicly -- but she was already feeling betrayed because Pete joked about it during a standup routine last week at a charity event. We're told it got worse when Ariana saw the promo.

Sources told TMZ that Pete got word Ariana was upset, and decided he didn't want to go through with the skit he'd written for this week's 'SNL' -- they had an agreement, after all. He discussed it with executive producer, Lorne Michaels ... and he signed off on pumping the brakes.

Davidson cracked a joke about the fact he's single during a promo for this weekend's 'SNL' -- asking musical guest Maggie Rogers if she wanted to get married. 

Sources connected to 'SNL' say Pete had been in good spirits while prepping for the show -- and was open to making jokes about jumping into relationships too soon. 

The marriage joke, to Ariana, was NOT FUNNY and she blasted Pete Davidson on social media Thursday night after he joked about their breakup. She tweeted  "For somebody who claims to hate relevancy u sure love clinging to it huh. thank u. next." She later deleted the tweet. 

Pete previously joked about their engagement when 'SNL' came back from summer recess -- but that was when he and Grande were still together.

The jokes were self-deprecating about how Grande is the breadwinner in the relationship -- and he was just lucky to be there. 
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So for now Pete will keep silent about his relationship with Grande.