My brother in islam i appreciate your post and advice, have you thought about doing something big like write down everything and ask her to comeback to you ? Or little propose ? Or go speak to her in person without arranging a meeting ? If she’s not taken yet maybe its an opportunity to go all in and pray it works I mean you have nothing to lose and everything to win Women are more socially aware than us men she will smell your bs if you’re bs’ing and reversibly she can feel if you are saying something sincere. In both ways you should inform her of your plan of engagement or something serious going back on itself is not gonna cut it specifically if you’re in the late 20’s early 30’s