Fours can become moody and incommunicative, passive-aggressive, and disdainful, actually hating the very person they may have been so passionately in love with. Rejecting the other (and feeling rejected) can alternate from both parties. Arguments can spiral out of control and hurtful things get said until reconciliation becomes difficult, if not impossible. Once certain things are said in the heat of the moment, they can never be taken back. Permanent damage is done to feelings of trust and safety—and to the future of the relationship. Once hope for the relationship dies, it is difficult to resuscitate                   

How true...