Nikki and Juan Pablo Galavis

The ladies of The Bachelor are about to brawl.

On Monday's episode, tension between front-runners Nikki and Clarecomes to a head when Nikki abruptly walks out on a conversation the women are having at their hotel in Miami.

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"Clare is like a dog," Nikki says during her confessional. "She peed on [Juan Pablo] first, she claimed her territory and the fact is she claimed some territory that might not be hers."

Says Clare, "I feel like Nikki is always gets away with just being a b----. I'm not OK with that."

Watch the tense confrontation:

The Bachelor airs on Mondays at 8/7c on ABC.