Feeling ko may iba yung asawa ko. Kahit anong lambing ko, parang wala siyang gana. Pano ko ba siya kakausapin at tanungin kung may babae ba siya?

What is your basis for thinking na may iba na siya? Aside from being walang gana, may iba ka pa bang napapansin? There could be a lot of reasons why your husband could be not in the mood--pwedeng stress siya sa work. Did you ask him how was his day like everyday when he gets home? Look some more for other signs before thinking way too fast about cheating.

I don't want to sound too religious, but I suggest you pray first for maybe a few days for God to give you wisdom especially for the words to say. Mahirap kasi magsuggest kung ano ang pwede gawin, but each family has a different dynamics. And while you may have doubts now, avoid accusing him immediately during your talk kasi baka mainis siya agad.