See you went with the power "OG" move..
Lol...
Best thing to do is let the situation be and if you see her in the group, don't be salty or rude, just be you and act as non-affected as you can. That ish is going to kill her inside because you are not "thirsty" or showing any type of remorse for standing up to her and showing that you love yourself more then just the yambs...
Plus, like I said 24 is a very awkward age for a female(in general) because if they have been in a long term relationship, they probably are still pinning over their first love or first serious situation and any dude coming after that is going to catch hell or deal with the aftermath of getting their heart ripped out(word to Kano) when they find out old boy comes back with the classic" I am ready to love you right",smh...
But there are still quality chicks out there to wife and there still are chicks that just want the D..
It may sting but use this L to propel yourself to be great..
Peace