Your first paragraph, is complete nonsense.
Even all EU countries don't have the same agreements, some pay no tuition fees here, some pay only a third, some the full whack, depending on the individual agreement with that country. Nothing to do with deliberately excluding the english. I dont think you appreciate how many there are in Scotland, most of the rural countryside is predominantly English people that have settled, or retired from down south etc etc.
Your second i can sympathise with, maybe canvas an SNP northern england branch, for someone to 'moan' on your behalf as she/they do for their voters here.
There is a cohort called something like 'EnglishForYes', who as the name suggests are english resident in scotland regularly campaigning and for scottish independence. Maybe set up your equivalent, or join them or whatever.