First of, none of what I suggest will have him fall out with this girl and lose her as a friend. Keep that in mind.
Probably not, but it is giving him a bad mindset.
Let us break this down:
I do not see where you are coming from with this!!!
-Maybe she is not interested enough? ------- what is enough? she is contacting the dude, and she is suggesting plans for the both of them.
She didn't suggest plans, he did. She merely chimed in. And she's pretty clearly not suggesting plans exclusively for them both since she asked if more people are coming.
She's fresh out of a relationship. You can be sure she'll welcome the attention but that doesn't mean her interest is real.
-Maybe she is not comfortable enough?
I do not know what that really means in this context? Is he going to give her a bath?
It means that if you make small talk with a woman without actually flirting with her, she won't be comfortable going out 1on1 with a guy who's invite seems to have come out of the blue. Even if she finds him somewhat attractive, the prerogative is still disproportionate.
She is not 'testing' you. I never used that word, but it could be used in this case and I will argue that in most cases the girl is testing.
you date invite did not make it clear enough that this is in fact a date.
How clear can you be??? And by the looks of it, the dude made it pretty clear it is a date. A guy taking a girl on a date is vague thing, and can be extremely visible by the plans he proposes. Let's go grab a drink or let's do this or that. Then the girl agrees. Then she says "let's invite friends".
Like I said before, if his "recent talks" with her involved flirting, teasing, innuendos and so on, then ofcourse she'll have indicative to think it's a date. If they're blend and impersonal on the other hand, she may very well not understand why he'd suddenly show romantic interest whereas he didn't up to that point.
And asking a woman to "do something" is hardly a date invite.
Not all women are alike, and by the looks of it, I could guess he is dealing with an Alpha female. And she is sizing him up.
There's no such thing as an alpha female. And yes, not all women are alike. And not all women should be worth your time either. What's in your opinion the point of playing games? Because if experience is any indicative, women who play "hard to get" do so because they really don't have anything to offer, so they try to create the illusion of value.
You argued with me about common sense. I am all about giving girls a break and the benefit of the doubt. But just because I get drunk and insult people, that does not obligate said people who got insulted to take it from me. With that, I am saying, even if she is confused (just taking your argument into account, which is most likely not the case) she should be treated the same manner. I am not saying go treat women like shit, I am saying treat them the way they treat you.
It's not about giving women the benefit of doubt, it's about valuing your time and not wasting it on people that don't reciprocate. He should treat her exactly as she deserves, and not attribute her displayed arguable lack of interest as a "test", or resort to any other kind of wishful thinking.
Let's not hypothesize. What is the alternative?
She will keep pushing him, and he will be rolling over. And giving her every benefit of the doubt. At the end of it, if he is done all of that he will be "Such a nice guy!!!" << I want to die before I hear these words from a girl (never have never will). Or "You are my new best friend"
Again, not about giving her any benefit. My answer to her friends question would've simply been "No, I'm asking you out on a date". But that's not in the slightest because I thought she was testing me or playing games. Just clearing up what was supposed to be obvious, and her response to that will be dictated by our interaction prior to that point.
What is he going to lose at this point? And what is any of what I said originally compromises his friendship with her.
Dealing with this
Doing/saying what I said originally establishes dominance, and telling her you are not fucking around. If she is 'interested, but she is confused' OMG. She will get her shit together because this guy isn't fucking around.
At last, saying this with all delicacy. I do not see any common sense in your argument, in not being forward and dominant in game. I encourage against it.
All the best
It's not necessarily about what he has to lose now, it's about what he has to lose in the long run. Time should be a valuable commodity. Sometimes you fuck up and she's not interested, other times she's unavailable for other, external reasons. Either way the reality is she's not into you, and this whole "test" mentality does little other than encourage inexperienced guys to keep pushing on a door that's clearly shut, as a way to protect their egos from rejection. There's no growth in that.
Women will always be turned off by men that can't take a hint, and will be very careful in sending the right signals when their interest is real.