Following a denial from her spokesman in April that she was engaged, actress Lindsay Lohan has publicly referred to Egor Tarabasov as her fiance in a series of social-media posts castigating him for alleged infidelity.

The first volley came Friday, People magazine reported Sunday, with the Long Island-reared “Mean Girls” star, 30, saying on a Snapchat video, “My fiancé’s being really angry at me, but I’m drinking water to get him to come home. Honey, come home, please.” She captioned it, “ET phone home.”

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On Saturday she posted three tweets, still visible Sunday, linked to three since-deleted Instagram messages. According to People magazine, the first, which referred to the alphanumeric handle of Tarabasov’s private Instagram account, read, “I guess I was the same at 23... [Expletive] time- it changes at 26/27 @e2505t thanks for not coming home tonight. Fame changes people.” Shortly afterward, she tweeted, “Wow thanks #fiance with Russian hooker @pa5hlondon,” an unexplained allusion to the London-based fashion label PA5H, founded by Dasha Pash.

Another tweet, two minutes after that, read, “Home?” and continued on Instagram, “First time in my life-bare with he/ he cheated on me with hooker,” according to People.

One Instagram image that remained up Sunday afternoon was a black-and-white photo of Lohan’s and Tarabasov’s faces, with scribbles obscuring his. “He wore black and I wore white.... I guess #art is whatever you make of it,” Lohan captioned it.

Finally, an apparently unrelated tweet read, “lindsay lohan labour pains trailer - I am pregnant!!” and linked to a Google Images page showing a still from her 2009 romantic comedy “Labor Pains,” about a woman who pretends to be pregnant in order to avoid losing her job. The photo linked to a July 15, 2009, article headlined “New Trailer to Lindsay Lohan’s ‘Labor Pains’ Unleashed.”

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Lohan’s spokesman did not immediately respond to a Newsday request for comment.