Forgot My Diet Plan

So I was working out my client's little-kid fantasy today, and it was all going great, she even called me 'Master Trainer' and everything. But at the end of our session, I told her to go home and eat only what was on her meal plan for tomorrow’s early morning workout. Big mistake. Later that night, feeling a bit rebellious, I know, childish, and bored, I ended up eating a whole pint of Ben & Jerry's just because. Now I'm back in my trainer role, and she's all upset with me like I broke some unspoken rule or something. It’s not like it was part of any DDLG dynamic we agreed on or anything, but still feels like I let her down somehow.