1. Fear of COMMITMENT ITSELF
This fear has usually nothing to do with you. People who fall under this category come in three different groups.
-- Those who don't like having to make major decisions -- making decisions simply goes against their nature. They find it hard to stick with anything long enough to reap the benefits. Their excuse is "I am spontaneous and just don't like to plan stuff." But the difference between spontaneous people and those who don't want to make decisions is spontaneous people make plans and decisions -- but keep the options open.
-- Those who find it painful to make major decisions -- making any major decision is gut-wrenching and even traumatic. This includes major decisions like leaving a job for a new one, moving to another state/country, putting a very sick pet to "sleep", etc.
-- Those who just don't like the idea of "binding" decisions -- they see commitment as a point of "no turning back" and so feel cornered and trapped. They get anxious because commitment triggers fear of losing freedom, of being tied down, of not being able to pursue one's dreams/goals etc.
If you are the person on the receiving end of fear of commitment itself, you really are never sure if you are in a relationship or not. The person doesn't make contact until you do and between "dates" nothing is going on that shows you are in a relationship. It feels like a relationship but it also feels like a booty -call (because these are the only times you really "connect").