Jana Kramer and her husband Michael Caussin have reportedly split after a little over one year of marriage.

Citing an anonymous source "close to the couple," Entertainment Tonight says that Kramer and Caussin have separated, and that Caussin is being treated for undisclosed reasons at a rehabilitation center. Neither Kramer nor Caussin, however, has made a statement.

In recent photos on social media, the singer appears to still wearing a ring of some sort on her left ring finger, but she has not posted any photos of her husband on social media in more than a month; Caussin last appears in a picture dated July 6. A close friend of Kramer's tells ET that she is "trying to put on a brave face and do what's best for her daughter," but that "she's been devastated by this."

Thirty-two-year-old Kramer and 29-year-old Caussin were married on May 22, 2015, less than six months after getting engaged on Kramer’s 31st birthday (Dec. 2, 2014). On Jan. 31, the couple welcomed their first child, daughter Jolie Rae Caussin.

Kramer was previously engaged to Brantley Gilbert, but the couple split up in August of 2013. Before her relationship with Gilbert, the artist and actress was married to actor Johnathon Schaech, and she wed Michael Gambino prior to that; both relationships lasted only a few months.

Surprising and Sad Country Star Splits