Grey's Anatomy's best hookups (and relationships)

EW is celebrating #7DaysofGreys to kick off season 15! For more on Grey's Anatomy, buy the issue of Entertainment Weekly here now.

Some say Grey's Anatomy is a medical drama that happens to feature a lot of romance, but it's our belief that it's a show about relationships that just happens to take place at a hospital. Need proof? Just look inside the elevators. Or the supply closets. Or, really, any dark corner where a doctor (or several) could get it on.

Romance is the backbone of this most fantastic original Shondaland show, and society's water cooler discussions wouldn't be the same without all the ons and offs of the Grey Sloan Memorial staff's on-again-off-again relationships. But, of course, keeping up with everyone who has dated, married, been engaged, or simply hooked up with someone else in the cast is a full-time job. Luckily, it quite literally is our full-time job, so we created this handy chart to keep everyone abreast (sorry, we had to) of the most memorable...let's just say shenanigans...through season 14.

Grey's Anatomy airs Thursdays at 8 p.m. on ABC.