what do i do in this situation? my dad has cheated on my mother before, and this even resulted in a lovechild which my mother knows about, but stuck with him anyways. My mother doesn't know i know about him, and my father knows i know, and even tries to discuss it with me on occasion. he speaks about him sometimes when we are both alone, but he never tells me how it happened. and now, he's doing the same shit again with another woman. he goes away frequently "on business", i've read texts from him to her, and vice versa, plus, he's even had the gall to have her in the car with me once but he's never admitted to having any relations with her. after the car ride, he said "don't tell your mother". also, he calls her, and you can immediately tell who it is by the change of the tone of his voice to a more loving one. i've even checked his camera on occasion (which he is heavily protective of) and seen images of them away in Florida together, and even with her son. i even checked one of his bags to see a picture of this little boy over a picture he had of me which really, really hurt. he's screwed up because ALL the men in his family do the same shit, including his brothers and his father. i just don't know what to do. i can't really tell my mother because it would destroy her, but i hate what he is doing. he even almost got caught once by my aunt. (my mum's side of the fmaily knows) the woman was in his car while he was driving and my aunt followed behind him, but drove off as soon as she thought she was noticed, which lead to a very vicious denial from my father and a heated conversation with my aunt on the phone... i do love my dad. don't get me wrong. he's a nice guy sometimes, and always helps us out when we need him, but my respect for him has greatly diminished.. anyone with advice or facing anything similar?