I think there's something wrong with me. Can you verify this?
You are joking. I'm hoping to know more. Can you tell me what you think is wrong?
I think I'm being clingy when he forgets to message me back when I ask "where r u":
Asking where your partner is during a relationship is normal behavior as long as it is not something that is done obsessively. If your partner does not respond when you text him, it isn't being clingy, it shows that he is being inattentive to your needs. You should bring the issue up with your partner so that he knows how rude it is to leave your messages on read.
LoL, I didn't realize, I think I will try him again.
A response from a partner when they ask where you are is  something everyone expects in a relationship. You are not clingy, so just try it again like you said and see if he responds like a normal partner would.