Brandi Glanville may have just shared one the most offensive tweets ever. The Real Housewives of Beverly Hills star tweeted a special message for her cast mate Yolanda Foster, but was she being genuine or was it a diss?

Brandi Glanville Feuding With Her 'RHOBH' Cast Mates

Foster's battle with Lyme disease has played out a lot on the Bravo hit show, but did her co-star just make fun of her via Twitter?

On Sunday, Glanville shared a photo of a lemon tree while on a hike and apparently the tree made her think of Foster, but why?

Yolanda Foster Battles Lyme Disease

Could it be that the lemon tree reminded her of Foster's battle with Lyme's? It's unsure what Glanville meant by the photo, but her fans are clearly shocked and surprised that she shared the image along with the message.

Fans on Twitter responded to Glanville's photo, and they are eager to know if the message was diss.

What you do think viewers? Is Glanville being genuine, or was her message slightly offensive? Let us know your thoughts in the comments below.

Real Housewives of Beverly Hills airs every Tuesday night at 9 p.m. on VH1. Fans can watch a sneak peek of the new episode in the video below.