HILARIA FLIRTFEST TIES ALEC IN KNOTS

Quick-stepping with DWTS partner has him flatfooted & seething

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Baldwin is loving her experience competing on season 34 of Dancing With the Stars

SPOTLIGHT-loving Hilaria Baldwin is flirting up a storm with hunky dance partner Gleb Savchenko on Dancing With the Stars and sources tell GLOBE that her jealous, old-dude hubby, Alec Baldwin, is ready to explode, fearing that his 26-years-younger wife is slipping through his fingers!

An insider says the burly 67-year-old star, who's notorious for his violent outbursts, is trying to be supportive and has faith that Hilaria, 41, wouldn't disrespect him by crossing the line with Gleb, also 41.