A and B are both Filipino nationals married in a traditional Ibanag Wedding in the Philippines. In 2020 before the pandemic, A left for the U.S. to work as a caregiver and was locked down. Out of loneliness, A had an extra-marital affair with C, an American national. A thereafter divorced B in the U.S. and subsequently married C.

Should A return to the Philippines, may she be charged with filed by B for either adultery and bigamy as B maintains that under Philippine Law, they remain valid despite such divorce decree obtained. (Note: Bigamy under Philippine Laws is committed by anyone who having a valid and existing marriage enters into a subsequent marriage, while Adultery is committed by a woman having carnal knowledge with another man not being her husband.

If so, will the charges prosper? Explain

How about the nature of the marriage between A and C, what is its nature and validity?