You cant ask her out that's perusing, unless it a situation where you are going out and you ask her if she wants to go and if she doesn't want to you go anyway.
But in general you do not pursue.
Me late 30's W mid 30's T 15, M 10 S4, S7 ILYBNILWY June 2015 In house S July 2015 W rings off Oct 2015 My ring off Feb 2015 Separate houses June 2016