Basil/ living in a house with 2 cats and one dog

Basil is a small Brown, white and black dog that was born Feb 15th 2012. He doesn't like being alone for along time (so it's been hard to sleep for the past few days) but he loves going out. I think Tiger has been around dogs before because she isn't starting the fight. However Toonie is growling and hissing every single minute of her life. Whenever they fight Basil jumps on someone to prove he owns us. If you pet a cat when he is looking he get really mad. Tiger on the other hand is completely fine with sharing a bed with him. They aren't really friends because they ignore each other. Basil is noticing that tiger wants to be left alone so he leaves her alone before the fights on.