Michelle Williams & Jason Segel's Romance Heats Up

Michelle Williams appears to have a budding romance with "How I Met Your Mother" and "The Muppets" star Jason Segel.

"It's been a few months," a friend of the Oscar-nominated actress told People, claiming the stars are an item.

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"I've never seen her happier," the source added.

Michelle and Jason reportedly met through her longtime friend, "Cougar Town" star Busy Phillips, who also co-starred with Jason in "Freaks and Geeks."

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Jason, 32, and Michelle, 31, have seen together in Brooklyn and Los Angeles in recent weeks.

Earlier this month, Jason Tweeted, "If I fell in love would you guys be happy?" - but then removed the post.

The actor recently opened up to Parade about dating, saying, "I don't want to have a girlfriend for the sake of having a girlfriend. I have no desire to pick a random girl. I want the right girl. There are plenty of opportunities, but I would rather have the right one."

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Michelle has a daughter, Matilda, 6, with the late Heath Ledger.

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