Good for you!!! thats liberating, isnt it. and you dont have to stare at the phone or obsess over when hes going to call or what more hurtful things he could say (atleast in my case) this also prevented me from trying to call him because i didnt want to lose the power.
i cant say it didnt hurt to change my number. it hurt knowing it was one of the few numbers he had by heart, i had the same number for 8 years - the same length of time wed been "trying". it symbolically said i was moving on with my life without you in it. it was hard, but it is empowering and its nice to have a number where the people who are calling are the people you gave the number to because you want them to call. nows a great time to lose other numbers too!
you go girl. stay strong. its inspiring. the power is in this moment!