my wife is filipina.
back in 2012 she was living in the UK--with a student visa. she was married to a filipino. she obtained a divorce here in the UK. so she was then single again anywhere in the world--except the Philippines.
in order to straighten that out--she applied for annulment in the Philippines--which to all intents and purposes is a divorce--the only difference being fat cat lawyers and greedy judges all get their snout in the trough. so it is only affordable to the wealthiest people. unless she can get a foreigner to come up with the cash.