Also, you generally tend to be quite insecure with yourself and others. When you meet someone, you only distrust that person until they show you otherwise. And when you start a relationship with someone, you fear a lot that the other person does not love you enough. Because you always give yourself too much and don't know if the other person will give so much. You always worry about being correct enough so that love is reciprocated.
Now you don't feel like going through all this, and you don't want to worry so much about love. You prefer to live life and forget about love a little. There will be time to fall in love and feel the butterflies in your stomach again. You prefer to be as you are before starting a serious relationship that could bring you many more problems and worries.