ساختار جمله‌ی Just for not having wanted to lose his web

Candidate meaning =>      Just because he did not want to lose his web.

Structure:

- "not having wanted to lose his web" is a clause functioning as object of preposition (for).

-"not having wanted" is  the perfect gerund form of the verb "to want". These forms are used to emphasize the completion of one event before another. In most cases the general forms are also acceptable.

Examples:

His having been cheated on twice before made him very cautious.(passive)

She regretted having spent / spending  so much for a  car.(active)