Okay, so my partner has a child with another woman and they constantly message each other which I understand they have too. But his lying to her telling her his not with me when actually his sitting right next to me, I wanna message her so badly but I know it's probably not the right idea. I try and and talk to my partner about it but he say he lies because he don't wanna start an argument. What should I do it's starting to get me down a little bit..