There are people who cannot talk to each other for more than a few minutes before they want to scream or leave the area, and this is a sign of incompatibility on a date. When this occurs, people believe they should never spend any time with the other person, and they often fear they will become violent if forced to do so. For these people, their problem may simply be listening to the other person speak.
There are few relationships that can survive a lack of verbal communication between partners, but fuck buddies is one of them. There is little need for the partners to speak, and physical relief is the only communication they are interested in. A fuck buddy wants physical intimacy, and anything else that is happening in their life is off limits. No one has to worry about holding up their end of the conversation, and that is the beauty of this type of relationship.
It is often difficult to date when seeking a good partner for a relationship, and many people prefer to wait for physical intimacy until they know a person better. Having someone available for local sex makes it much easier to have patience when forming a relationship with someone else, and it is a good way to remain celibate until a solid relationship forms.
People who have little or nothing in common make good buddies, and they realize it does not matter if they can talk to the other person. They have found the one thing both of them can agree on, and that is all that really matters in this type of arrangement. Finding someone like this can take a long time, but a person who is incompatible when chatting on a first date may be a good find for an uncommitted relationship of this type.