
The number premarital sex partners a person has VERY significantly increases the chances of future divorce/breakup, cheating, unhappy/unsatisfactory marriages/relationships, STD infection, ect. This is very strong statistical fact that is robust to all control variables such as religious background.
I personally am wanting to be with someone who has a body count of 0. For religious reasons, I have a body count of 0 (yes that includes oral, fingering, etc. I have had no sexual contact with another human ever) and I would want to be with someone who is equally as or more religious than me. If I can keep a body count of 0 despite having advances made on me I don’t think it’s unreasonable to expect my future partner to also have a body count of 0