Leon, my therapy dog

I grew up with dogs. I absolutely LOVE them. But my lifestyle over the past 7 or 8 years haven't allowed me to have a pet. A fish is about the only thing I can own, but I have to keep buying them cause they die on me. There's something about dogs that bring peace and comfort. The family I am living with began discussing getting a dog at the beginning of the summer. I was extremely excited about it. We went to the shelter and brought home a beautiful black and white Lab/Pit Bull mix. He's pretty much become my dog since I'm the one that's around him most. He sleeps in my room at night, follows me around through the house during the day and always wants to go for a ride with me in the car. He brings me joy that I haven't had in a while. I was informed earlier today that they are thinking about getting rid of Leon. With 2 young children in the house and a very playful and rambunctious puppy in the house, it can wear you out. And that is with normal sleeping patterns. So the parents are seriously considering finding him a new home. I think my heart about ripped apart when I heard that. I understand their concern for their children, but I guess I don't see all the "bad things" that can happen with him. So what's going to happen if they get rid of Leon? I won't have anyone to go on evening walks with just so I don't have to remain in my room. I won't have a 50 pound dog jump up on my bed and wake me up licking my face. The animal that has brought me more joy over the past few months is about to be taken away from me. I don't know what's going to happen...if I had the money I'd move out where I could have him for my own. On the plus side, I'm grieving a potential loss before it has actually occurred. This is a miracle from God since I don't grieve things.