It may be "Nobody's Business" and all...but Rihanna's intent on making it our business anyway.  Thanks to her non-subtle tweets.  Last night, the "Diamonds" diva gave fans a peek into the hotel life of her & her ex Chris Brown...after she jetted to Germany to support him on his Carpe Diem tour.

Check out Breezy shirtless and sleeping in bed inside...

Well isn't this special.  Rih took to her twitter to post the above pic of Chris Brown sleeping in bed...half dressed...surrounded by his fave character Bart Simpson.  She said:

Dis nigga....#BartObsessed

And since any Breezy fan knows he's indeed Bart obsessed, especially since he posted this pic of himself in a Bart jacket just hours before, we all know exactly who that is laying in the bed.  Dude got put to sleep...and we doubt it was just because he was tired. Just sayin'.

As for what Chris' ex Karrueche thinks about all this Twitter PDA between those two...no one knows for sure.  But she conveniently Tweeted one word right after these pics went up, "Ugh!"  Could be coincidence...but maybe not.

Today, the two parted ways as Rihanna headed to London to perform on "X-Factor" (pictured above leaving her hotel room on the way to rehearsals at Fountain Studio).  Meanwhile, Chris jets to Katowice, Poland to hit the stage at Spodek Arena.  We're sure these two will hook back up extra soon...

Pics: Twitter/SPLASH