Not My Pug!!!

Okay, so my mother and her fiance' are happily in love, right? Right. But see the problem is that my mother's fiance' has two sons. The oldest is not happy loving here. (With us) He says it doesn't feel like he lives here. We try to convince the fiance' that it's because he is never here. And the Oldest son misses his mother a lot. The fiance' is deciding to move out. Really? What an Ass. My mother put her all into making this relationship work. And it has, for almost a year now. But the Oldest son suddenly hates it here. What the fuck? Anyways. Now that they have decided to move out my mother is SO torn up about it, I don't know what to do. She loves him. I understand him wanting to keep his son happy. But every now and then you have to say no to your kids. Right? I feel so bad for my mother. I love her so much, and don't want her to go through this again. We changed everything when they moved in. We knocked down walls, torn up carpet, painted walls, joined rooms, and made new room. Not even a year has passed and they are leaving us. What about the youngest? He's four, and he loves all of us. How is the Fiance' going to tear all of us apart for one child who is going through a phase? It angers me so much. And when they moved in they brought two dogs into our family. Lulu and Kong. Lulu is a fat pug, my little angel. Kong is a huge brown lab, who has a mental disability. They have also gotten really close to our two German Shepards, Plum and Parker. How can he take them away from us? If you have pets you understand how connected you get to your dogs. Lulu is my baby. I don't know if I can take it. Gosh. I wish things could just work out.