Jenelle Evans: Engaged to Gary Head!

Jenelle Evans is engaged. Seriously. She broke the news herself on Twitter.

The "lucky" man is Gary Head, who she dumped and dedicated this hilariously angry video to just a couple of weeks ago! How quickly times change!

No word on when theyeven  got back together, but the troubled Teen Mom 2 star revealed that she and Gary are getting married this morning.

Jenelle Evans posted a photo of the engagement ring from Head, with the message "I'm the luckiest girl in the world to have @gary_head in my life."

Details are few and far between so far, though Jenelle has re-tweeted a bunch of people reporting that the two are engaged, so that sort of proves it.

She also replied to a follower who asked if Gary Head got the ring from a gumball machine - nicely played, follower - with a simple "no he def didn't."

The engagement comes out of virtually nowhere, as she and bad boy ex Kieffer Delp were back together when she had her boob job ... this month.

Kieffer's apparently out of the picture again, though, leaving Gary Head to see Jenelle Evans nude for the rest of their lives ... or at least probably May.

What do you think? Is she ready to get her act together, settle down and live a quiet, productive life? How long will the engagement last? Comment below!