Amber Portwood's fiance, Matthew Baier, has been plagued with accusations of hiding the fact that he has more children for weeks, and now, she's seemingly spent Valentine's Day alone.

'Teen Mom OG' Amber Portwood Defends Matthew Baier's Past

Following a number of reports, claiming Baier has more children then he claims, the Teen Mom OG star sent out a post to fans on Sunday, revealing it was her daughter, Leah, whom she spent the holiday with.

'Teen Mom OG' Amber Portwood's Fiance Is 'Conning, Manipulating' & More, Claims Former Friend

Although she didn't specify that Baier wasn't present during Sunday's festivities, she did share an odd tweet just hours later, which may have been a hint at trouble in paradise.

"Don’t mistake my kindness for weakness. I am kind to everyone, but when someone is unkind to me, weak is not what you are going to remember about me," read Portwood's Al Capone quote.

And in the caption, she added, "Just the truth..still sending all my love no matter what..love goes further in life."

During an earlier episode of the currently airing season of Teen Mom OG, Portwood's ex-fiance, Gary Shirley, presented her with documents, claiming Baier fathered seven children, not the two he claimed, and weeks later, a Radar Online source revealed he also had an eighth child.

For more of Amber Portwood and Matthew Baier, tune into Teen Mom OG, airing on Mondays at 10 p.m. on MTV, and check out a sneak peek at tonight's new episode below.