ok, good. she was straight with you.
she's not lying. it IS too soon for her to even think about dating another guy, esp. excusively.
so she's telling you she can be your lover. but it's prob. gonna be on her terms, which means she won't answer your calls, and won't return your texts, and will show up when she wants to show up.
if you are happy with that, then all is cool. if not, you have to decide what you want, and tell her without anger and without judgement. there's no way to trick her into doing something she can't do. even if she did it, she'd hate herself and you and make you both miserable.
she's in no position to be your girlfriend right now, even casually. she'd be a terrible girlfriend right now. give her space... and if you hook up, enjoy it. in time, she might be ready.
just think about it. if you broke up with a terrible girlfriend 4 days ago, what would you need?
not another girlfriend. but sex with a girl who's nice to you and makes you feel good would be ok... as long as there's no pressure.
keep it casual and fun. NOTHING heavy.
(or, you can reduce her to the conquest she's meant to be

)
this stuff is waaaaaay more complicated than pickup. that's why PUA gurus don't talk about it.

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Sean Messenger
http://LVo3.com
"War is not the answer. Love is."