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.