1. They prefer to show, not tell

When it comes to relationships they prefer to keep things private. They may post pictures on social media, but they aren't the type to put all of their business out there.

2. They'll go out of their way to please you with thoughtful gestures.

Since they aren't the best when it comes to showing their emotions, they'll go out of their way to make sure you feel loved and appreciated. They'll spend hours on Pinterest coming up with creative gifts and letters to make sure you understand how much they value you. Or text you while they're put with their friends, just so you know you're always on their mind.

3. The walls they've built serve a purpose.

Often times they come off as indifferent and not too bothered by what others say. But this is usually just used as a cover up to mask previous heartbreak and pain.

4. They're afraid to appear weak.

Being emotional makes you vulnerable, and they don't want to potentially be taken advantage of.

5. It's hard for them to open up to themselves.

They've kept their feelings and emotions bottled up for so long, that sometimes it's hard for them to admit that they're really hurting. When they do start to embrace their emotions it can be extremely difficult for them to control.

6. Your words can really hurt them.

They've almost mastered the art of making it seem like nothing you say can hurt them. When you jokingly call them a "slacker", or "too quiet", or too bold it really does hurt them, just like it would hurt you. The only difference between you and them is that they can hide it.

7. They're not afraid to give you space.

Sometimes absence really does makes the heart grow fonder. Occasionally in relationships you need a little space from someone in order to appreciate them more.

8. They tend to be more independent than your average person.

Sometimes it's nice to have some breathing room and be able to just recharge.

9. You'll become more important to them in ways you'll never fully understand.

They don't just open up and share their deepest, darkest secrets to just anyone. So consider yourself lucky if they've opened up and shared things with you because obviously they trust you and value your friendship.