It's really not, when you're at that level (which I think is easy enough to define) you don't sleep with anyone in the company. At this point you should be a mature enough adult to be able to handle this, if you're not, you probably shouldn't be in a leadership role. If you're so enamored with someone then you leave. The workplace is a place for work, not a place to find a date. Do people date people they work with? Of course – and that's fine, but the second it gets in the way of the work it's a problem and needs to be handled, rarely can it be handled any other way than having one person leave.