In the past I've tried to ask her out ( without success ).
People at work know this.
I'm now getting the 'What have you done to X?' comments. :-(
This means I'm getting all the aggro without the fun part first! :-)
BTW, I'm not annoyed at X as she isn't aware of what they are doing and is a lovely person, so I'm wishing her and her partner all the best for the future.