and I'll say its possible, its not filipino law that matters, its what the british embassy decides that counts.
one of the points of the unmarried partner visa is for those that cannot obtain a divorce in thier own country.
You must show that any previous relationship that you or your partner were involved in (whether it be as a married or an unmarried couple) has ended.
well if you have a 7yr old daughter with your partner, been togther 7yrs was it? any contact with her ex ?