When I was in SLEC, I talked to a lot of Filipinas who had no idea that spouses of foreign nationals have to attend a seminar at CFO and that their passports have to be stamped. It's a requirement for all Filipinas married to foreigners intending to leave the country. They will be looking for that CFO stamp in the airport.
The seminar is held everyday and has three schedules (2 in the morning, 1 in the afternoon - if i remember correctly). After the seminar, they will hand you a certificate (if you haven't applied for a passport yet, don't lose that certificate. If you lose it, they can only issue you another one three months after and you won't be able to have your passport stamped until then). If you already have your passport and visa, you can come back, present your cert, and have you passport stamped.
If you haven't applied for a passport yet, you have to present your CFO cert at the DFA.
Hope that helps!
