TL;DR: the development of a shitty situation I put myself in with a girl and how to go on about it... any help would be fully appreciated by a fellow human just trying to be a man in a fucked up fabian socialist, feminized country (Brazil).

OK, so, yesterday I made this post(https://www.reddit.com/r/asktrp/comments/6zh6ux/i_need_help_with_this_shitty_situation_please/) about a girl who approached me for sex via internet and after spending a lot of time chatting, texting AND sexting with me (I know, huge mistake on my part) got to see me twice but we never got to fuck (even though when we hooked up it was actually STEAMING HOT). thing is she is very young (19) with conservative parents (even though she's as perverted myself) she is going through the end of a relationship (which she actually ended while talking to me, showed me the shit and all), but the anxiety about fucking her made me rush things, get to needy like a fuckin' pussy-hungry beta (she's THAT type you know, "my number" as we say in Brazil) and push her away... she went from saying she wanted to fuck my brains out and do all kinds of kinky stuff to me, to saying she wanted to be my girlfriend and even talking to her mom about me, and I saying I like her and acting all romantic towards her [FUCKED IT UP!] (another mistake omp, I know I should never let it get to that point before fucking her), to saying she doesn't wanna hurt my feelings and just wants to be "friends with benefits" (probably just wants me orbiting her as a cockless faggot).

long story short (not really): the hooking up talk pretty much stopped, she spend days still talking to me but not as enthusiastically (only when she gets depressed, she is diagnosed with clynical depression but I'm pretty sure it's more than that, probably HPD, possibly amorous NPD or BPD [she's very seductive and overly sexy, loves to send nudes], and that's when I assume my most beta faggot persona and tend to try to talk her off saying she will kill herself [she claims she already "tried" it 3 times], which I usually manage to, but then she starts acting cold towards me like a fuckin' emotional vampire), she's probably exploiting another flirts and shit but she claims she needs time, has been cancelling our meet ups or giving excuses to schedule new ones and shit, so I pretty much fucked it up hugely by not using whatsapp more logistically... I've spent all day yesterday "radio silencing" her (after getting some hours of it myself), but I know that attraction is a big thing between us (really) while also knowing I pushed her off by being too invested, so I knew she was gonna react to that (either because she's still curious about fucking me or she just wants to get orbited), so that's exactly what (kind of) happened... last night past 12pm she sent me a "heart emoticon", probably shit testing my orbitancy, so I gave her the cold shoulder and did not respond for about 2 hours (I was doing other stuff, reading posts and the sidebar here and talking to another chick on facebook), then I just sent a quick and humorous "hello" and went on with my night... she didn't responde after that...

my question is: while I still wanna fuck her, I feel like out of respect for myself I shouldn't spend anymore time talking to her via whatsapp, only in person... do you guys think a colder approach and loads of radio silence will make her chase me? don't get me wrong, I'm not gonna be waiting on her, but even if I'm hooking up with someone else she's gonna probably stay at the top of my list because of the high sexual tension/attraction, and that's something I just can't help... I know that might not be the right mindset, but should I wait for her to start another conversation and give an ultimatum kind of date invitation or should I stay relatively close to her, keep reaching but just not be very available and needy? she's young and not very deep thinking, so it's not gonna be hard to mess with her mind, thing is my dick gets in the way of my brain sometimes, LOL (sad, I know, but laughter is better than tears for motivation). is radio silence and changing my attitude towards her to only wanting to talk in person the best approach to turn the fuckin' tables and close the fuckin' deal or should I just forget about it and move the fuck on? also: if she hits me back with radio silence, should I try one last time to see if she wants to cut the bullcrap and meet up and do everything the SWORE she wants to do with me or should I just drop it cold-turkey?

please, I'd appreaciate the help very much, don't be to shy about slapping me on the face, I know I'm fucking up, but it's kind of important for me to get that desire to fuck this chick out of my system in order for me to concentrate in other possibilities to my full don't-give-a-fuck self...

thanks.