No evidence found so far of homosexuality when working abroad, but there is some evidence of incest, unfortunately..
"Rhodora Abano, advocacy officer of the Center for Migrant Advocacy explained "that an undetermined number of families are breaking up due to spouses taking on another partner while the husband or wife is away. Likewise, most children of OFWs have become 'materialistic,' asking for more money to compensate for the emotional absence of one or both parents. Some of the OFW children have also dropped out of school...or resorted to early marriages because of teenage promiscuity, or bore children out of wedlock. Worst problem for OFW children is when they fall into drug addiction, gambling or other vices" (ibid.).
Incest has become common
On March 11, 2007 Veronica Uy of INQUIRER.netreported: "As more Filipino mothers leave for work abroad, incest between a daughter and the father who are left behind has become an emerging social problem."In connection with the International Women's Day, Philippine Senator Pia Cayetano called public attention to "an emerging problem in labor-exporting countries like the Philippines." The senator noted that "older daughters of women OFWs are made to take on the roles left by their mother, sometimes as 'substitute spouses'" (ibid.)."
http://www.ucg.org/commentary/family-break-ups-plague-filipino-migrant-workers/