I don't know if this counts as sabotaging or "stealing", probably the latter, but near the end of Batgirl New 52, there was the issue where Dick suddenly shows up after she assumed he was dead the whole time to try and crash her friend's wedding and force her into a situation where he can playfully flirt with her, despite her already being in a relationship with Luke, in which she then chewed him out for how bad all of that was.
And in terms of Dick's committing issues, there was the Nightwing Annual where Barbara decides they should just try and do it because the timing will never be right so they shouldn't just keep waiting, and Dick's the one who leaves just because he felt he couldn't stay in one place.