How do you know someone still loves his/her ex?

Can feel u. I hVe been there , realised it's not worth, came out of it weak n may be vulnerable too , but recovered strong, made myself stronger. U can do it too . No matter what we think about heart, feelings , emotions, human body is made to adapt n survive if any individual wants to. We need to prioritise what we need n what we don't. N then move on when something is not worth keeping. Emotions r not connected heart , it's technically connected to brain. N brain can be trained always if we put all our will power together.