It's a rather peculiar combination of tenses and implied probability of certain events in the future, I think.
She has such good ideas, such insights, you know.
characterizes her. There is no condition, that's just what she is. The next portion
She would point out something to me, and I would see it...
describes (as has been pointed out in the comments) the habitual happening, but in the past, in other words, the speaker states the fact, that in the past she did point out something, and the speaker did see it, on more than one occasion.
Now, the next portion,
... but not if she doesn't draw my attention to it.
is actually a conditional (see the "if"?), so why is present tense is used here? I believe it is past-in-future, and is an incomplete conditional (ellipsis):
but if she doesn't draw my attention to it, I won't see it.
the second clause is contracted into the single "not" and squeezed between "but" and the "if".
Interpretation: "While in the past I saw things when she'd point them out, it is uncertain that such feeding of ideas (to me) is going to continue."