She is your regular because you are her regular. You know exactly what to expect and she knows exactly what to do to get your going. Good service comes from knowing what the client wants, so it is also much easier for your regular to please you.
Connection helps, if that's the relationship you want to have. On the otherhand, if it is strictly a service oriented relationship than connection doesn't really matter, especially if there is no time when you can chit chat.
For me, I like a decent massage beforehand, so connection is also important. My other regular I am just there for her service so there is never a chance to chit chat.
My regular regular just came back from vacay and she couldn't wait to me about it while giving me a massage.
On the otherhand, she is going to do dirty deeds with you, so you don't want it to be like you buddy either.
Maybe you regular is kinda like your side chick/booty call ? You show up whenever but you know she is busy when you are not there either.