Welcome here.
Once you have arrived into UK on a Partner/Spouse visa you will be free to visit the Philippines anytime.
You will not become eligible to apply for Indefinite Leave to Remain (ILR) until after 5 years.
There are currently no restrictions on residence/absences when making application for ILR
However there are annual restrictions retrospectively imposed when apply for British Citizenship.
Normally holidays/absences of up to 90 days per year are OK