What is wrong with Rob Kardashian?
While the reality star's famous siblings have spent the week adding to their collection of revealing photos on Instagram - look, there's Khloe Kardashian on a boat! There are Kylie and Kendall Jenner in a bikini! - Rob has posted nary a picture.
But he has received attention something he put on Twitter anyway, writing mysteriously on Tuesday:
No one will ever understand how much it hurt.
To what could Rob possibly be referring?!?
The star has been battling weight problems for months now, with some saying he recently weighed in at over 260 pounds.
Could he be talking about the criticism aimed in his direction as a result?
Rob was also very good friends with Lamar Odom and we all know what sort of struggles have befallen that ex-NBA star.
Could Kardashian be referencing Lamar's fallout with his family?
Way back in late 2012, meanwhile, Rob split from Rita Ora and accused her of cheating on him with 20 dudes.
All this time later, could he be reliving the pain of that breakup?
We may never know for certain, but we can still theorize and we can still send Rob our best wishes. Hang in there, buddy! Do the best you can with Kim as your sister and Kris as your mom.