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By Jennifer Odell

Sigh. Spencer Pratt has taken his rifle full of Twitter lameness and aimed it at Lauren Conrad, demanding to know why she wants to come back to "The Hills" when "nobody cared" about her when she was last on the show.

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His tirade continued for 14 tweets, in which he lambasted her ex-boyfriend, her looks and her talent. A few of his most choice gems include:

"Just make sure you pack no bikinis for your trip back on the hills. Still sick from photos I saw of u in a gutter 3 years ago;" "What don't you do a show abbot [sic] you trying to be entertaining? You can't compete against snookie and situation ha! U are boring;" and "S--- has to be hard when your mom looks way better and younger then you. Then again your mom has good doctor you are broken."

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Earlier this month, he attacked Kate Hudson for her reported breast augmentation and criticized Audrina Patridge's "nasty Tijuana plastic surgery."

Conrad, who left "The Hills" after five seasons of fighting with Pratt and his wife Heidi Montag, has yet to respond.

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