Beckinsale, 45, clearly has a type, as Rife is a comedian - just like new beau Davidson - and has appeared on Nick Cannon's MTV show Wild 'N Out and MTV's Total Request Live.
Matt Rife, who dated the British actress for nearly a year in 2017, has nothing but the best wishes for the new couple, but warns Pete to "be careful".
The comedian, who dated the stunner for a year back in 2017, spoke to TMZ, where he revealed his top tip for his ex's new man.
"Enjoy it while you can", he said.
He told the publication: "We dated for a year...it was complicated".
In addition to Rife, Beckinsale's past relationships include an eight-year relationship with actor Michael Sheen. I wish them both the best. Porowski, sitting awkwardly next to them, was the "wholesome guys with good paying jobs who text back and have no baggage".
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The pair has made multiple headlines over the last few months after they were first spotted spending time together in January at a Golden Globes afterparty following Davidson's split from Ariana Grande.
His final words of wisdom: "I don't really have any solid advice - just be careful".
In response, the "Underworld" star wrote, "Antoni is gay, if that helps clarify at all #queereye".
Despite the two being such an unlikely pair and also, their 20 years age gap, it seems like they enjoy each other's company very much and are getting serious, judging by their PDA at the New York Rangers' game over the weekend.
Porowski has previously described his sexuality as "fluid".