Pete Davidsonis officially moving on fromAriana Grande.

Nearly two months after theSaturday Night Liveactor and musiciancalled off their engagementin October, Davidson, 25, is dipping his toes in the dating pool once again.

“He’s doing well, slowly starting to date and put himself out there again,” a source tells PEOPLE.

The former pair’s relationship began in May. Less than two months after they started dating, theydecided to marry, but the singer later called it off because it was too much too soon, a source told PEOPLE at the time.

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2018 MTV Video Music Awards - Show

Last week, Grande, 25, dropped the star-studded music video for her new single “Thank U, Next,” which references their whirlwind romance and split and features a slew of celebrity cameos.

In the wake of their breakup, and the video’s release — it has hit more than 96 million views on YouTube as of Monday — asource told PEOPLEthat Davidson is feeling attacked.

“The whole story is not out there and people are bullying Pete for something that is not his fault,” the source said. “This is definitely bullying, her fans are continuously bullying him. He has a mental illness and no one seems to care about that.”

“I’ve kept my mouth shut. Never mentioned any names, never said a word about anyone or anything,” Davidson wrote on the social media platform. “I’m trying to understand how when something happens to a guy the whole entire world just trashes him without any facts or frame of reference. Especially in today’s climate where everyone loves to be offended and upset it is truly mind boggling.”

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2018 MTV Video Music Awards - Arrivals

He concluded: “I just want you guys to know. No matter how hard the internet or anyone tries to make me kill myself. I won’t. I’m upset I even have to say this. To all those holding me down and seeing this for what it is — I see you and I love you.”

According to the source, Davidson didn’t originally intend on speaking out publicly — until a waiter in a restaurant put the song on and started filming him.

“It’s just ridiculous and mean,” the source said. “His feelings were genuine and hers seem to be just part of some plot point.”

Nevertheless, the comedian is “doing well,” the source added.

source: people.com