Separate discussion with my gal pal from last night:
She said she would end a marriage over lack of sex, no question. Would you ? I would not. I would end it through cruelty, or desperate circumstances but not that. If love is there then I am showing up.
When I was younger, I might have since I conflated love and sex to some extent. Not so much any more, so depending on the reason for "no sex", it wouldn't be a deal breaker.