Custody with a non biological son
I was married to my ex for 6 years, she had a son that was just over 1 and has always known me as his dad, we had a daughter together and now our son is 8 and daughter is 5, I have never legally adopted the son, but now that we are separated, she moved to prince george in January (we were separate since sept.) and I was going to have the kids for their 2 week easter break, 3 days before the break, she phoned me and says that I can have the kids until at least summer, she wanted to go to councilling for herself, she still has no intention of getting the kids back anytime soon, at least for longer than the summer anyway from what I understand she is moving into an 800sq.ft place and is getting rid of most of the kids things. My question is, what are the chances of me getting custody of both of the kids even though my son is not my biological son? They both do not want to go back to live with their mother, and have both set's of grandparents here and my ex's sister and family here as well.