common law relationship-not living together

[danb]

Is it possible a court in Ontario can deem, someone who has had an 8 year relationship with someone...but does not live with them?

[standing on the sidelines]

not sure what your question is. If someone has had an long term relationship but never lived together it is not considered common law. If they lived together for a set amount of time or had a child while living together then it is considered common law.