It took Parker over a week, dh says it was about 10 days before he would play with Price. I was like you, I was worried that Parker didn't like him, felt displaced, ect. Then one day out of the blue they began to play. Price was pretty persistant though. Even though Parker snapped at him continually (he was gently reprimanded) Price never gave up. They are now best friend, unless that is one of the girls are in heat. Then, well he ceases to exist until the heat cycle ends.