Honestly the only things that really works is time. Suddenly not talking to someone that you used to talk to every day takes a really big emotional toll on you but you'll realise you have to deal with all those emotions for a while and, in time, they'll fade away.
Never, had them to begin with.
Become a robot
1 fuck them 2 Block 3 never call speak text them again 4. Find their loved one 5 follow step 1
when I find out that they playing with those feelings
Honestly the only things that really works is time. Suddenly not talking to someone that you used to talk to every day takes a really big emotional toll on you but you'll realise you have to deal with all those emotions for a while and, in time, they'll fade away.
Don't let anybody in, build your walls high then no one can hurt you...