Thanks for your report.
I'm not going to take any action against xbox because cursing isn't really against the rules.
Cursing excessively, cursing AT someone (calling them a "b*tch" saying "f*ck you" and things of that nature) or being intolerant of race, religion and such ARE against the rules, however.
But- if you have any more issues, feel free to post another report.
And remember, you can mute people too! (:
BYOM.