Yes and yes.
Your role will be forever changing as a relationship grows and develops, as will hers. A relationship lasting years/decades goes thru many stages. Initial attraction, infatuation, learning about each other, knowing each other as well as you know yourself, living together, deciding who is has which responsibilities in a household, perhaps raising kids, good days/bad days, etc, etc.
For now, your roles are simply to meet and get to know each other...and see where that leads.