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...but she looked so happy when we snapped her shopping at a local golf store (yes, really) yesterday!

Maybe she's so tickled because she's going to be single and on the prowl soon? According to a source for In Touch Weekly, LeAnn has told hubby Dean Sheremet that she's ready to file for divorce and "she's leaving him in the hopes of being with her married TV movie co-star Eddie Cibrian."

Last March photos of LeAnn kissing Eddie hit the web, and even though it was pretty apparent that LeAnn was a homewrecking adulterer, she stayed with her husband. Heck, the two even made out in public in an effort to show us (along with several disgusted restaurant patrons) that their marriage was juuuust fine.

However, it looks like Eddie may not be the only problem - a source also tells the mag, "It would be incorrect to say that she's leaving Dean because of Eddie. They have always had problems. They both got married so young - LeAnn was just 19 - and people just grow apart." While divorce papers haven't yet been filed, the mag reports that the couple has put their home on the market and they “want to get rid of [it] fast."

Hmmm, so when can we be expecting to hear a divorce announcement? And more importantly, which married man will LeAnn try to shack up with next?