The real problem here is how you allowed yourself to be disrespected out of desperation for p*ssy.
If you fapped before your date, soon as you seen her in a coat, you probably would of been so turned off that you would of made a excuse to get out of the date seeing clearly her attraction to you was low.
It's ok, we've all been there.
Why didn't you say or do something if her being on the phone bothered you so much?