Hi. I am married but already separated ( but not legally --not legally separated nor annulled). I have 2 kids from that marriage, both under the custody of their father. I met and fell in love with another man with whom I co-habited for 2 years and sealed our union with a son.then he left for work in UK with a tier 2 visa. Now our son is 3. We would want to be together as a family in UK. any chances?