<human>: Give me a shortened version of the text

Hello! It's been 2 years since I've dated someone. I had just one relationship which lasted 4 years and after that I fell into a big period of depresion and basically shut myself down. I was so upset to the point that I lost confidence in people. Basically my life was: go to work, come home, do the house work...play video games/watch a movie/read a book, go to sleep.

Recently, I was feeling so lonely and decided to go to a bar after work and get a beer. So, I went to the bar and luckly there was an old friend which I haven't seen for half a year, sitting at a table with a girl so I've decided to join them.

I've presented myself...and we started to talk. And we talked....and we talked for like 4 hours :). My old friend was sitting there quietly.

At the end she said "It's been a pleasure meeting you. We'll keep in touch".  - but I was to scared to ask her phone number because I thought it would be strange.

Luckly my old friend has her number(he is not interested in her) and I'm thinking of calling her and ask her out for a cup of coffee. 

My question: Should I do this or should we have some more "accidental meetings" until I do this...so she can know me better?

I really need some advices on what to do/ how to deal with this issue since I'm not experienced. 
Thank you so much!
<bot>: Should I phone and ask this girl out after meeting her in a bar(talked 4 hours non stop) or should we have some more "accidental" meetings before asking her out?