• Elroy Cheo and Elva Hsiao appear sweet in this photo posted by Cheo on Instagram in Jan. 2015.

Elroy Cheo and Elva Hsiao appear sweet in this photo posted by Cheo on Instagram in Jan. 2015. (Photo : Elroy Cheo/Instagram)

What do Taiwanese Elva Hsiao and American Vaness Wu have in common aside from their profession?

Well, for one, they share the same birth month, which is August. Second, they are both romantically linked to two persons related by blood: siblings Elroy and Arissa Cheo.

Third, and this might be what makes tongues wagging as of late, their respective relationships are rumored to be on the brink of fizzling out.

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Taiwanese singer-commercial model Elva Hsiao and Hangzhou-based Singaporean businessman Elroy Cheo started going out in 2014.

Hsiao, who turned 36 on Aug. 24, didn’t have Elroy, who is in his early 30s, as one of her guests during her birthday celebration.

His absence was evident based from all the party pictures posted by Hsiao on her Instagram account.

In July, the two had an argument that prompted Elroy to briefly unfollow Hsiao on Instagram, according to AsiaOne.

Toggle reported in April that when asked regarding her supposed marriage to Elroy this year, Hsiao said, “We have no plans as of yet. We will probably consider it next month.”

The last relationship Hsiao had was with Taiwanese actor-singer Kai Ko, aka Ko Chen-tung (“Tiny Times” series). They dated for nearly two years, but their May-December romance (Ko is now 24) reached its end in June 2014.

Elroy’s older sister, Arissa appears to be dealing with her own share of grief based from her recent Instagram posts.

Wu didn’t appear in any of the pictures posted online by Arissa when she celebrated her birthday on July 30.

The female Cheo, 33, married Wu, 37, on Nov. 15, 2013, in Los Angeles, California.

Arissa and Elroy are children of Dr. Cheo Tong Choon, executive chairman of the board of edible oil producer Mewah International. Their family ranked 49th in Forbes Asia’s “Singapore's 50 Richest” in 2014.

People might be waiting to see pictures of Elva and Elroy sharing again some sweet moments together.

As for Vaness and Arissa’s Instagram followers, they might also have to content themselves waiting for the couple’s next individual posts for an update on their marital status.