[ ...ah man. yeah. sorry he just apologised about speeching but you've activated him again ]

Even if you can't see them, as long as you still feel that you're friends, that bond won't break. You can go months without seein' someone, and then the next time you do it's like nothing's changed. Or... even never see them again, but your time with them is so special that it's enough to keep going. It's hard, for sure, but always worth it.