Does a dinner "date" with a friend count as a date?

I was talking to a longtime friend of mine(13 years) today and we were talking about a restaurant and she said "hey me and you should go and have a little dinner date." and I said sure. Does she mean date as in just friend or date as I like you and we should date. She has always denied liking me when people ask her. We flirt a lot too(we actually we flirting when she asked me kinda). But lately she hasn't been texting me back, but her friends are now calling me her future husband(they've done it before but now it's worse lol) and telling me to go ahead and get her a ring. What does this mean?
Does a dinner "date" with a friend count as a date?
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