I did, briefly.
She kind of hid when I was there. She contacted me later on though, and was a scrag, so I'm okay with not really spending any extra time getting to know her. If she played in a big part (or any part at all really) in DD's life, I would pretty much require to know her at least a little. I personally would not be okay with some person I don't know sleeping in close proximity to my child, spending time with my child (potentially without either parent there), etc.
(And no, I didn't make sure DD's father had that chance with DP, but too bad... I'm higher on the parenting ladder than he is/was).