We're not only apart,but we're together.

That's right and the perfect words for it is parent caring. Close does not means inmate and a part does not means out-date. Caring factor bridge the a part and foster factor bond an 'inmate trust'. That's life and a life a system, which is driven by love factor.

Not only two cities, even if you and your mom stays in south pole and north pole, you are never apart, you two are always together. You may not be able to see each other due to distance but, by heart a child is at the heart of his or her mother and same with the child.
Wish you two all the best, have a great day.

This is a similar situation to me. I moved abroad in April this year, I call my mum every week to chat. I feel so much closer to her now than when I used to live closer to her. Absence does make the heart grow fonder. I really appreciate her a lot more now that we are not together. Its amazing how your perception can change when you are unable to be close to your loved ones. I think you can take family for granted when you live nearby and you probably don't see them that often.

i often call them on the net,so though about two months apart,we can't feel that long,some times we chat on the vedio.two days later will be my mother's birthday,i hpe i can give her a surpries.