Do guysespecially if older come back n regret leaving u after more than 2 months of him brking up n supposedly ur friends n theres less contact as time goes by but when he sees me he approaches 2talk?

No - chances are slim to none, it seems he still considers you friends as is just being friendly when you see one another - I wouldn't read any more into it. However, if you want to be certain speak with him and see how he really feels.