The brainiac couple

This category encompasses both motivated go-getters and overachievers as well as self-proclaimed intellectuals. They're almost always at the library. Sometimes uncomfortably close to your study spot, sometimes distracting you because PDA, making you want to be like:

The hipster couple

This couple might seem quiet or reserved, but the truth is that they don't need to be talking all of the time to enjoy each other's company. Both people in this couple are laid back. They also have great style, and probably also great hair:

The on again-off again couple

They've broken up and reconciled so many times that everyone has stopped keeping track. It's your typical roller coaster romance. They can't seem to stay away from each other. However the volatile nature of their relationship often makes their friends want to do this:

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The "beacon of hope" couple

They've been together forever. Everyone loves them and also secretly hopes that they end up together because the thought of this couple breaking up would lower your faith in romantic love. All you really have to say about this couple is:

The social media couple

You know this couple because you see pictures of them together quite often on Instagram, Facebook, Twitter, etc. They might have met using social media (tinder romances). They text 24/7. You know what he got her for Valentine's Day because you saw it on Instagram. You know where he took her for dinner last weekend. Let's face it: you know way more about this couple than you want to. But if you ever poke fun at this couple's excessive social media involvement, you're likely to get something like this:

The "you're a couple?" couple

There's one of these on every college campus. When you find out these two people are together, your first response is: wtf? This refers to 1. Private/low-key couples that don't advertise the fact that they're together, as well as 2. Open relationships. Either way, when you find out from someone who isn't your friend, you really just want to be like:

The PDA couple

And finally, the couple we all know and (sort of love?) This couple pretty much explains itself. They're handsy everywhere, and I do mean everywhere, and alcohol just exacerbates the physical affection, making it look somewhat like this: