Come Get Your Man!
"Still texting, calling, and FaceTiming me," Shelby recently tweeted. "Better get your man, girlfriend!"
Does Mackenzie Know?
Mackenzie recently quit social media, so it's possible she doesn't even know about the allegations.
The Talk of Twitter
But TMOG fans certainly know, and much to his chagrin Ryan is once again a popular topic on Teen Mom Twitter.
Some fans believe Shelby is enjoying the attention. "If it really bothers her so much she could easily block the number, girlfriend!" tweeted one.
Cut Him Loose!
But most who have replied to the tweet have offered sympathy to Mackenzie and encouraged her to kick Ryan to the curb.
Tuning It All Out
For her part, Mackenzie has kept mum. Sources say she's wisely decided to focus on herself and the health of her unborn baby.