I've been curious about this for a while.
When you ask a girl you want to pick up about dating-advice, will it improve her interest or back-fire?
Example:
I met a girl (lets call her A) yesterday. We were a group of friends hanging out in a park, and me and A began to talk.
On Saturday I have schedueled a date with another girl (lets call her B), that I have been fucking for some time.
My plan is to "break up" with her on the date.
Anyway, me and A hitted it off good. The date was in my head, so I asked A what to do about it.
More exactly how to break up with B properly.
She was very passionate, and gave me some good advice - but afterwards she seemed to be more flakey about me.

What are you thoughts?
Should I keep this stuff to myself?
On one hand, she will know that there are other women in your life - which is a good thing.
On the other hand, she might turn the swiftes off, because you are "taken".

After the conversation, girl A realized that once girl AA appears in your life, you'll break up with her and change her for girl AA... She she does not want that to happen to her so she started to act flakey towards you.

Do you think that any person on his/her right mind would like a partner who cannot commit? That looks for new opportunities while being in a relationship in order to break it up once he finds something new?

Having other women interested in you is ok, it might cause attraction, not being able to commit to a relationship and flirting with other women while being in a relationship is the biggest turn off, unless she is doing the same at the moment, or she is has no self esteem at all and is so fucked up that she already got addicted to the pain of being heartbroken.