How can i tell my mom/mum i am going out with a girl who i want to travle miles on a train to see PLEASE HELP?

your mom should be able to understand dont say yu met on the internet be like shes your friends cousin. be careful tho ( sometimes you think you know someone) online dateing is tough and you will come to realize it in a while. nd after a while yur gunna be tired of paying an arm and a leg yur young live your lifeee . i mean be with her but dont give up your parents respect for someone.