this is bonding question. i have a trio of males not brothers who i got together at 6, 8 and 10 weeks. they are now round 11 months. the middle male had to be separated from them as he was getting bullied by eldest. the eldest and youngest are living together with youngest being the submissive and the middle guinea lives on his own in same cage separated by grid. i adopted neutered male and introduced him to the middle guinea. intro went well so i moved them to the cage. this caused my other 2 makes go crazy. the submissive one started chasing and humping the eldest and bith started to square each other up. i had to remove the new guinea pig out of there. things settled down since but i am confused ad ti why this happened. will i try again? i am worried that i will risk my bonded pair to fall out in the quest to make the lonely pig happy? any advice?