Sources close to the situation tell us Selena and Abel split recently -- this after publicly dating for a little more than 10 months. We broke the story ... the couple was first seen making out in public back in January.

It's been a fun ride with these two -- we've seen them put on the ultimate PDA in just about every damn setting you could imagine ... from a Dave & Buster's date to a tour of the Galleria dell'Accademia in Italy, plus hand-holding at Coachella ... and everything else in between.

As we reported ... Selena received a kidney from her BFF this summer, and The Weeknd was around to support her at the time. But it's no secret now ... Selena and Justin have been spending A LOT of time together recently, sans Abel. People first reported the split.

Just like before ... the heart wants what it wants. Or doesn't.