A bachelor is a selfish, undeserving guy who has cheated some woman out of a divorce.

یک مرد مجرد، فردی خودخواه و لایق نیست که برخی از زنان را از طلاق فریب داده است.

"Yksinäinen mies on itsekäs, ansaitsematon kaveri, joka on pettänyt jonkin naisen erossa."

Here is a translation of your text into Latin: "Studiosus est homo selfish, indignus, qui aliquam feminam de divortio fraudavit." Please note that the word "studiosus" is used in the sense of "bachelor" (a student), which might not capture the full meaning of "bachelor" in the context of unmarried men today. A more precise term for an unmarried man could be "vir solus" or similar. Would you like an alternative translation with that consideration?

Een vrijgezel is een egoïstische, oneerbiedige man die een vrouw heeft bedrogen om uit een echtscheiding te komen.