Sex / Pornography Addiction Support Group
Sexual addiction, also sometimes called sexual compulsion, is a form of psychological addiction to sexual intercourse and other sexual behavior.
Sexual addiction, also sometimes called sexual compulsion, is a form of psychological addiction to sexual intercourse and other sexual behavior.
The fact that you are having obsessive thoughts about your SO, and find it difficult to simply relax sounds a lot like substitution.
http://www.allaboutlove.org/love-addiction.htm
http://www.healthymind.com/s-relationships.html
http://love-addiction.com/onlove.html