Would you break up with your boyfriend because you didn't like his hygiene habits?

A friend asked me to ask this because… well, it should be obvious.

Last night, her bf came over and they had sex. In the morning, he did not take a shower before going to work. This is not the first time it has happened (in fact it is a pattern) and it really bothers her. She has addressed the issue with him a few times, but to no effect.

Would this be enough to make you break up with the guy? Is there a good way to address this issue that might get a better response?

Also, it’s a workplace romance.