hi Michelle! I just found your post, I've been here a bit spottily. Thanks so much for sharing this!
I sometimes have an "I don't want to know about it" attitude if my partner has interacted with part of me without my knowledge, but I always really do want to know, really, so I'm really so glad you told her about it. Maybe by now you and she have been able to discuss it?
I also want to say it sounds like you handled it very well. I know you're experienced at this, but I still want to reassure you that it sounds like the encounter went very well. As far as a name, if he(or she) doesn't seem to have one, you might just suggest he pick one out that he likes? That is how some of me got named, and it really helped them to identify as real people with names. Any name is good, even if it doesn't sound like a "real" or "normal" name.
I really hope you and your partner are doing well! We'd love an update if appropriate for you to do so. ~Emma