Germany has a preoccupation with beer.
The suffix for excessive preoccupation is "-mania." For example, "kleptomania" refers to excessive preoccupation with stealing.
What does he intend to make his sole preoccupation
Simple, she is demonstrating her affection for you. Pardon the short rant that follows: The preoccupation implied by this question with the American preoccupation with sex, sexuality, and sexual orientation if maddening. There is absolutely no reason to read into a simple act like a kiss any other meaning that what it is, a sign of affection. Speaking as an American, this entire society needs to grow up. How about we start right now?
It is the obsessive preoccupation with numbers.
Consumerism
It is a morbid preoccupation with thoughts about cleanliness; obsession with bathing, washing hands, and so on.
monomania
yes 7
Preoccupation can be caused by a variety of factors, such as excessive worry, stress, a busy schedule, or an intense focus on a particular issue. It may also be linked to anxiety, perfectionism, or unresolved emotions that are taking up mental space. Engaging in mindfulness practices or seeking support from a therapist can help manage preoccupation.
arithmomania - obsessive preoccupation with numbers.Viper1
Hypochondria