US Immigration from Philippines

U.S. citizen married to a Filipina in the Philippines, received divorce in the U.S. from filipino wife.

Is all I need is a "Affidavit In Lieu of Certificate of Legal Capacity to Marry" from the embassy or would I have to get the divorce recognized in the Philippines since my last marriage was in the Philippines to a Filipino?

Off Topic: Is there a place online foreigners are monitoring/discussing COVID, travel, and the Philippines. Personally had tickets to come back March 19 but flight to Davao got cancelled. Now I don't know if/when I can go back. Had K1 application approval but need to make other plans.

Good day,

I understand that if the K2 follow to join he/she needs to fill-up a separate I-134.

On the form I-134 (Affidavit of Support) Part 2 Number 7 (Relationship to sponsor) what would the K2 to follow applicant (18 years old) put in this field?

Thanks.