Edit, tldr:
I'm not in scarcity, had an awkward "the talk" with a chick that has remarkable potential to make up for a relatonship's hassles, in which she asked me for exclusivity but told me she has some barriers to getting involved with me because of my behavior and her previous experience.
Wondering IF I can give her some days to give powerful signs that she has opened up, how many days (I can only afford like 10, more than that and I'm pretty sure I'll raise too many barriers to prevent myself from getting involved to consider solving it), and if someone has something to add.

Edit 2:
If you want some BP example, read the post, then read /u/mrpthrowa 's answer to it, and you'll see just what not to do and how easily I got owned by a chick six years younger. All she had to do was taking me to a rock concert - despite disliking it - and hiking. And fuck, naturally. And I'm not even talking about a girl above my league.

I'll provide a bit of background to try to avoid the same answers of ever.

I'm not in scarcity, as of now I am SURE that I WILL get laid in any given night by a chick that I've banged before and I'm also pretty sure I'll get a new chick in no time, even during the week most tinder dates end in bed. Scarcity isn't playing a role.

Anyway, about the chick.
We've been hanging for two months, she's remarkably intelligent, can hold a proper conversation, has invited me to three particular hang outs that I enjoy a lot, suggesting strong similar interests, and she was a fnl, attraction is playing a major role and is pretty high.
I sensed that the talk was coming and decided I can give it a chance. Raise the investments, become exclusive, increase my expectations and give her a chance to fulfill them because she might be able to.

The talk came in a different fashion. She said she was closed towards me, then let me know why. She glimpsed some chick's innuendo in my phone's screen when I picked it up, got really worried that I could do "couple's things" with her and have other women and it made her defensive because "she suffered with a guy like that once and doesn't want to go through that again".
In the end she said "I can't date more than a guy at once and I want to try to open up to you but I'm afraid and that is hard, so please no labels for now and please get rid of the others".

Anyway, this was a terrible answer. I'm not shielded against getting involved, it just doesn't happen easily, but her defensive behavior is a fucking red flag and caused me to raise some barriers against it. If these barriers settle I'm nexting her, breaking them is hard as fuck and I can't quite fathom the idea of being exclusive without forming a pleasant bond and involvement.

Well. As for the questions.
I'm not sure about how to approach the subject, or if I should approach the subject. I overtly told her I won't commit to a defensive chick already and she said she'd try, and the conversation ended there. Should I tell her I can keep open for N days or shit like that, or should I just give the N days and, if she doesn't show signs of ability to invest, next?
I guess I can give it like 10 days or so, tops. There's a holiday this week, I can give her that but if she fails I'll regret losing it to give her a shot. Opportunity costs are high.

Did any of you stepped into a similar spot?
Old blue pill me fought his way through my ex's traumas and pain to be rewarded with being the bb of a chick that was too insecure to cheat or break up but was ever increasingly demanding of comfort to make up for the ever decreasing attraction. But my ex was average at best and this chick gave this ONE red flag in two months, so not average by any means.