2.
They like you as a friend
This person is being very friendly with you and it seems like they want to be your friend. That doesn't mean that something more won't ever come from this, some of the best relationships start off as friends. For now, it seems like friendship is what they are seeking with you.
If you have a crush on this person, are you okay with just being friends with them? If so, continue spending time with them and enjoy their company. Friendship is a great thing to have and is definitely something to be valued. Don't make it weird, just be their friend.
If you can't handle just being friends with this person, that's okay to. Distance yourself from them and over time you will find someone else who loves you in the way you deserve to be loved.