Lol..Thats why you cancel the class bro after you get her number! Most schools have 2-3 weeks to get your money back at the start of the semester. And of course she is not going to openly hang out with boys. No one does that..its always hush hush in the paki community. I swear you wouldn’t know any of your friends were dating girls unless they specifically tell you, they just make excuses and go somewhere else and secretly hang with their gf’s/bf’s. At least that was the case back in my day.
To me any social media platform is the same as a number, the only benefit is with Instagram and fb you get to see her pics as well.
Either way, best of luck and keep it halal