Well, like I said before, Senjougahara saying she hasn't "split up with a man" before knowing that she hasn't experienced love before until meeting Araragi is strange, simply because the statement is redundant when viewed logically. Now, Suruga saying that she wasn't even in a that kind of a relationship with her makes that point even clearer. Ah well, I guess I have to simply chalk this up to Senjougahara's playful way of speaking.
Speaking of playfulness, I find our heroine's personality quite the unique one indeed.
Spoiler for episode 7:
It's sort of funny how she treats Araragi while he lies bleeding and broken on the train tracks. At first I thought she was just being her cold self when she chooses not to call for help right away, knowing that Araragi would heal himself anyway. As it turns out, she has other plans at that moment. I guess this is her unconventional way of tending to him?
I have to say that this girl still continues to surprise me, which is a refreshing trait to have as a character.
On another note, I also think it's odd that Suruga starts offering herself to Araragi despite her being a lesbian. Is she trying to break Senjougahara and Araragi apart? Perhaps she's testing him? Does she actually like him now all of a sudden?
From what I can infer from the dialogue, it seems as if she wants to be Senjougahara herself, and in a way, with her obvious longing for her, this desire sort of fits from a psychological standpoint. Just as I have said before, I hope that this Suruga Monkey arc wouldn't just be a trivial case of a jealous third party being the source of conflict. I'm not sure if that's indeed the case here, but I'm liking the presentation of the story and portrayal of the characters so far.