Will Play Fighting Make Puppy More Aggressive?I have 1 Pomchi 15 weeks old, male, and 1 chihuahua, 11 weeks old, female. The boy is very active and when we got the girl, 2 weeks ago, she was very cuddly. I am sure this was because she was new to the house. I am worried now because she "play" fights with the Pomchi all the time and really doesn't want to be cuddled. Will all this fighting make her more aggressive and not want as much contact with humans?