Isn't it About Time?

Boys are ridiculous. That in and of itself could be a universal truth.
Don't worry boys, girls are ridiculous as well.
Guys and girls are so often unwilling or unable to convey when they like someone... consequently guys and girls then have to play a guessing game to determine whether or not the person they like, likes them back.

But, never fear, I've found a universal truth to help combat how ridiculous boys and girls are.

Universal Truth Number Thirteen
Never waste your time on someone who doesn't have time for you.

If a guy or a girl doesn't care enough to ask you out, to text message you, or set up a time to hang out -- then he or she doesn't care enough.
Forget about him or her.
It's not necessarily an easy thing to do if feelings are involved, but it's necessary. Someone who's not willing to devote time to you, isn't worth your time.
As you move on, two different things will come of it,
1) He or she will do the same
(And you've lost nothing)
2) He or she will see that they're losing something important ...and will subsequently devote more time to both you and the relationship
(Giving better balance to your relationship)

There's nothing to fear if you apply this logic to your relationships -- it's a fantastic predictor of whether someone likes you, and how much.