Relationships are tricky. Sometimes you're lucky enough to meet people who aren't afraid of going all-in. Sometimes, not so much. The people who have commitment issues often have common fears. Here they are:

1. They worry when things get serious

They don't want you to put a label on the whole 'good-friends' thing.

2. They worry they are making the wrong choice

Are you 'the one'? Or not? How to tell?

3. They fear making plans for the future means they'll be stuck to just one person

It really means they don't want you to be in their lives for longer periods of time. Move on quickly.

4. They fear the responsibility of a relationship

A relationship takes a lot of work. From taking care of someone's feelings, pampering them, to loving them in a non-sexual manner. A person who has a fear of commitment will be afraid to take it to the next level.

5. They fear they'll get let down

Maybe, somewhere and sometime in the past, they've been hurt, and now they are afraid. Either that, they are still wallowing in a self-pity party and don't want it to stop. And maybe, just maybe, they're using this excuse to keep things casual and non-commital.