Most Helpful Girl
If she texted you O u t of blue that she hates you maybe it's time to have a coffee or lunch with her in a public place and have a talk discuss so she can get over her hate toward you! Maybe she still wants comfort who knows... life is short you are here today you won't be here tomorrow an ex is not a tree but a human being so it's ok to interact or talk to them back IF they initiate...
Most Helpful Guy
It's her way of telling you she thinks about you too.