hi, ok so my lil cat meo who is 7 months old has always had this teddy that he loves to play with but it has never been a problem till now. we have another kitten who is 4months called reacher (BF named that one), and they have been best friends since we bought reacher home. They sleep together and play all day together, reacher even has a habbit on sucking on meos neck when he is sleepy and meo lets him, there has never been a problem, but about a week ago meo started getting protective of his teddy and every time he is near it or playing with it he growls at reacher and stares at him he will even hiss at him and then carry the teddy to a diff room. Reacher knows not to play with meos teddy and isnt really interested in it. What could have changed meo's behaviour and what can i do?