You cannot expect yourself to forget what you felt for someone.
Feelings are very close to your heart and you cannot expect them to disappear from your life.
Even after the break up you keep thinking about the person and how you could have made things better.
Soon after the break up, you keep brooding about and wondering if your ex still loves you.
If your ex still loves you, he would definitely try to get in touch casually.
He would not talk about the break or his feelings but would call you up to talk about general things.
You know that your ex still loves you when you are the one who ends the conversation.
Your ex suddenly seems to be pretty fond of you and that evidently shows in his body language and speech.
Humans have a capability of sensing things around.
If your ex is still in love with you, you will feel it when he is around.
You should know that your ex wants you back if you keep bumping in to him every now and then.
If he randomly tells you about his life and it is you whom he calls at night before going to bed.
He talks to you about his interest and his affection towards you becomes very evident.
You can tell that your ex still love you from the way he looks in to your eyes.
You can make that out from his gaze.
He might even tell you that he is a changed person today and this has changed his perspective towards life.
You would also hear your ex talking about you to one of his best friends.
If he tells you that your ex misses your company.
This means that he still loves you.
If you hear him doing things that he never felt like doing and he talks fondly of his memories.