Spencer Pratt was live-tweeting during Monday night’s “The Hills: New Beginnings”, and he was pretty angry at what he saw.

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The reality star spent the evening ranting against his co-stars Brody Jenner, Justin Bobby, Mischa Barton, and his sister Stephanie Pratt.

During the episode, Jenner learned that Pratt apparently had a “beef” with him over not visiting him when his son Gunner was born the year before.

“But if he had some issue with that, you know, he could call me, come to my house,” Jenner said, alleging that Pratt “didn’t even invite me” to Gunner’s first birthday party.

On Twitter, Pratt shot back at Jenner.

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As the episode went on, Pratt also took shots at others in the cast: