Vasectomy unfair?!?!?

This is really no different then if you where with a younger guy and he wanted kids and you didn't , to his point he is gettin older and has lower tolerance for things then you and energy too, i mean it;s his body and if you love him then you should try to understand his point, just like he prolly understands yours but that age difference is a be factor, i'm 31 and i done with kids , once my son is grown that's it for me. I love my son and he is the only child i have and will have.