<human>: Condense the text into a few key points

So I met my GF through a close female friend (We have been friends for a bit longer than a year now) and we hit it off and things are going really well. I asked her out a week ago. The only problem (I'm not /sure/ it's a problem though) is that I'm not sure if it's okay that I have such a close female friend who isn't my SO. My GF and this friend both go to school together and when I said to the friend "I hope X doesn't think it's odd that we're such close friends" she responded with "no not at all". There is nothing sexual about our relationship, we describe each other as like brother and sister.

Before I was in a relationship I hadn't even thought about it. It's not like me and the friend are closer than me and my SO. Me and my gf talk for hours most nights but she lives in the next city so we only see each other on weekends.

Me the friend and another girl recently did a big movie marathon together and that consisted of a good few hours of us all lying on each other and resting our heads on shoulders etc. but it was just kind of mutual comforting, I guess you would call it snuggling, there was nothing sexual about it.

I don't know what to add. 

I know the standard advice for, well, for everything is just to talk to them about it and I plan on doing so.

I will answer any related questions you have. 

I just want to know if this is unhealthy.
<bot>: I have am very close with a friend of my girlfriend's. The relationship is completely platonic and predates my relationship with the girlfriend. Girlfriend says she is fine with it but I'm still not sure.