I have gone above and beyond for her in the course of our relationship, so I believe that she should be willing to give in and not go [URL=https://www.loveforum.net/usertag.php?do=list&action=hash&hash=2]#2[/URL] for a week or 10 days maybe.
There is simply no reason that she shouldn't go 7-10 days without a BM, and if she truly thinks that she would feel pain from not pooping for that period of time, then her mind is playing tricks on her.
Quite frankly, if I totally had my way, I'd have her not poop at all for 2 months, but I'd be happy enough with a week.