These spiraling ruminations are best described as obsessional thinking. The obsessor believes that by thinking longer and harder he will eventually come to some perfect solution. So much energy is put into these thoughts that other aspects of life can suffer. Without intervention this way of thinking is difficult to change. Obsessional thinking is a treatable condition, often triggered by loss, whether real or perceived.
Counseling can bring relief to sufferers.
When romance begins a couples' need to connect may seem almost insatiable. Each day is focused on one's contact with the other. Every revelation seems like a miraculous discovery. As time passes the two should become more comfortable and trusting of the relationship. It is not necessary to spend every minute together.