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Nick Gordon to Bobbi Kristina: "Happy Birthday baby"

Nick Gordon took to Twitter Wednesday to wish Bobbi Kristina Brown a happy birthday.

The daughter of Bobby Brown and Whitney Houston, who turns 22 on March 4, has been hospitalized ever since being found unresponsive in a bathtub at her Georgia home in January.

Gordon, 25, also posted a somewhat alarming tweet early Wednesday, saying he wanted to do himself in:

Bobbi Kristina Brown's partner has reportedly been at odds with Bobby Brown over hospital visitation. He's gone on several Twitter rants, slamming the New Edition singer -- but eventually said that he forgives him. Still, more tweets attacking Bobby Brown followed:

Family members have said Bobbi Kristina is "fighting for her life," but haven't released an update on her condition in weeks.

Bobby Brown recently postponed tour dates so he could spend more time at the hospital.

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