It's kind of a progression throughout your career which ebbs & flows depending on many factors. Safe to say it typically gets better as you progress from regional on up and of course seniority within your airline.

When I was a junior regional guy, I was only spending 10 nights at home at times commuting to reserve. When I left my regional I was about 50% seniority in base driving to work with around 15-17 nights at home. Then went to legacy FO on a narrowbody with slightly fewer nights home while commuting. Now I'm switching planes (still commuting) flying international with the most nights I've ever had at home with a regular schedule.

Like others said, it can vary wildly within each airline, fleet type and of course along with seniority. It's a tough question to answer but down the road your significant other just might tell you go to back to work since you're home so much