Why ?

Some people need more time and space to take things slow. Even in relationships, one may require some space at times. This isn't always because of the other one involved. Sometimes one has problems to deal with and just needs space for a bit. If you love someone, let them have space. It's not advised to try to keep that person even closer, because you'll end up suffocating that person. Give her some space to breathe. If she loves you, she'll come around eventually.