Ladies please help me out?

im afriad to tell my ex girl friend that i love her we ben threw alot fight and bs and makeing up and becomeing friend and i made her cry i was so mean for doing that but still we arent friend but i relize that i need her in my world and i cant live with out her and i wana tell her that i love her i wana txt her i cant becouse i forgot her num i can see her becouse its summer time please help how can i tlel her that i love her im so afraid how can i get un a afraid please help