A lot of people think age is just a number, but that's not always the case.
Related: 19 Times Love Unleashed Evil
Two consenting adults are allowed to be in a relationship, but when you put a middle aged person with someone who's in high school, or just barely out of it, things start to feel innapropriate.
We created a slideshow below of 13 romances that were ruined by age.
Frank and Alice - Friends
There's probably not a lot of people that actually support Frank and Alice's relationship. If anything, it was just supposed to be a comedic aspect of Friend's current baby storyline.
Daenerys and Drogo - Game of Thrones
People tend to forget that Daenerys wasn't even 17 when she was married to someone who was 30. We get that it took place during a different time period, but it was still uncomfortable.
Annie and Jeff - Community
The age difference between Annie and Jeff was put into place to show that they weren't going to be romantically involved. But as the writers and fans started noticing their chemistry, their dynamic started to change. We would have been all for it if Annie wasn't in her late teens and Jeff wasn't in his 30's.
Nick and Eden - The Handmaid's Tale
There wasn't a real romance here, but their whole storyline was a horror to watch play out. They were forced into an arranged marriage and Nick was expected to sleep with a 15-year-old girl. The scene was difficult to get through, to say the least.
Hakeem and Camilla - Empire
We can't be more thankful that this relationship didn't last long. There are a lot of icky things we could say about it, but him calling her "momma" sums it all up.
Aria and Ezra - Pretty Little Liars
This entire relationship was just wrong. Pretty Little Liars tried to make Aria and Ezra's love story epic, but it was horrible and illegal. Anytime a grown man sleeps with his underage high school student he should end up in jail, not praised by viewers around the world.
Josh and Maya - Girl Meets World
Did anyone else forget that Maya was in middle school when she and Riley saw Josh touring a college campus? They may have decided to wait until Maya got older, but it was weird that Josh was romantically interested in a child.
Mike and Eleven - Stranger Things
This one is a bit of a different situation. Mike and Eleven are just so young that it feels weird wanting them to be in a romantic relationship. A crush is fine, but it would be better to watch their relationship evolve as they grow older.
Puck and Shelby - Glee
This was one of Glee's weirdest storylines ever. On one hand, it made sense that Puck and Shelby developed feelings for each other while spending time with the baby they both loved. But Puck dated her daughter and it made everything just plain weird.
Belle and Rumpelstiltskin - Once Upon a Time
To be fair, age wasn't the main reason this relationship was horrible, but it can definitely be thrown in there. Belle and Rumple's relationship was a toxic disaster and his son was probably older than she was.
Seth and Kate - From Dusk Till Dawn
We have to admit that we still love Seth and Kate, but the show would have been much better if Kate was older. There was a debate of whether or not 18-year-old Kate should be with Seth who was in his 30's and ultimately it didn't happen. If there was less of an age difference, there would have been a better chance of it happening and we would have been even more on board.
Mona and Mason - The Perfectionists
Does no one else think this relationship is extremely weird? Mason is a teenager straight out of high school and Mona is a grown woman with a career at the college he's attending. They have good chemistry, but the age difference makes it hard to get on board.
Archie and Grundy - Riverdale
It's still shocking that Riverdale even thought it was appropriate to portray this relationship. Archie was in the summer of his freshman and sophomore year of high school when he was sleeping with his teacher, and it didn't even feel necessary for the plot.