how can I make him intrested in me agian?

okay…so I dated this guy for about a year…hes amazing and he dumped me like 4 days before the first day of school started…I see him all the time and I really still love him…I just want him to notice that I’ve changed and its for the better. I’ve become more outgoing and I can share my feelings with him…I’ve also mature in the way my body looks ;) hehe (his friends think he is crazy to have dumped me) and everyone keeps say…”you deserve better than him” but I dont want “better” I want him! and I know that if he could see how I’ve changed he will want me back too. I don’t know what to do…do I txt him and ask him to hang out..? or like will that be too akward and will he not want to? (btw he broke up with me like 3 months ago) and im still deeply hurt and cry when I think about him…im not “infatuated” with him…(we learned the difference between love and infatuation at school already) and I know I have more of the “mature love” feelings for him than the “infatuation” feelings for him…I just need him…I feel generally happy when im around him…and I get butterflies when I hear his voice…to me he is just all around perfection XD please help me… thank you!! <3333