What does this mean?

I think it would have been better if she had told her boyfriend that you two are hanging out and that she would call him later to get together. To be honest, I don't think she should have asked him to come along, but did promise to talk to him later. Friends should be able to spend quality time together (without boyfriends, girlfriends and the like). I have a strong feeling that this girl know that you like her, but is also helping you to understand that her boyfriend & his feelings do come first. Having her boyfriend around guarantees that nothing will go too far with you two. Excellent placement of a "middleman".

I'd have to agree with RF she may get the feeling that you like her especially if you guys had a special dinner together. She maybe asked you in order to make sure that it wouldn't bother which means she takes your feelings into consideration which is good but if she thinks to include her man on you and her plans I don't think she's leaving him anytime soon, but hey she did have plans with you only before that so you never know.

I think she was just making sure the two of you are on the same page. And there were no mixed signals. But she might think they you don't have the same idea as her?

If she wanted to be clear that the two of you were just friends, why would you mind her boyfriend being there. But it does seem that by asking again she thought you might be jealous

Sounds completely like casual courtesy. When I've been relationships and a female friend of mine has been in a similar situation, I've always made sure that they knew I wasn't just ditching them to hang out with my girlfriend (hence the repeated asking "are you sure? ). I think it's just her trying to make sure you don't have to be the 3rd wheel at dinner, since you'd originally had plans for just the two of you.

First of all, no matter what it looks like, if the girl has a boyfriend and you're going out to dinner with her, if he shows up too that's just going to make the situation awkward. What would the boyfriend be thinking? I'm sure he'd be keeping tabs on you all night and analyzing you. He probably wouldn't even want to be your friend. But see, what I'm thinking is, if people are truly "just" friends, then the common saying "the more, the merrier" applies. Because think about it, if you and your best bud were like, "hey lets bring some more people to dinner," you'd be up for it and so would he. But since she's all hesitant then there might be something more------what I want to know is how did the dinner go with you, her, and the boyfriend? What was he like?

Well she might think that you like her, and can feel a sense. She knows that you guys have fun together, but chilling with a friend and her boyfriend is like the 3rd wheel and is harder to have fun. Yeah she is being courteous. And her boyfriend seems jealous that's y she wants to bring him to show I'm maybe that you guys are just friends. Good>?