Yes. It will help you to talk about the relationship, it is a significant event in your life, and it would be good to know if the two t's are on the same page about outside contact. Take your time, as good as this feels, there is nothing wrong with spending time talking, getting to really know each other in a variety of settings/situations, rather than acting on the natural sexual urges (they won't go away...will still be there if all goes well)---
You mentioned that she "has" a current relationship? That needs to be discussed with her out loud, ....
Wishing you the Best Outcome!!!!!!!!!!!! ((((((((((((hug)))))))))))))