What you're doing isn't helping the situation, even in the slightest.

You need to put down the phone and stop texting. You need to stop talking to his friends. You need to stop sending him gifts. You need to stop convincing yourself that you had the absolute, most awesome love in the whole wide world.

You need to move on.

Even if this strategy somehow buys you another 6-8 months, this guy sounds unstable. If he dumped you because he read a silly note, then the bar is set pretty low and he'll leave you again. Save yourself some time and use it to heal your obviously torn psyche.