About this pet

I have had Dustin for 4 years since a pup, I have 1 older pug who is 9, and 2 younger sausage dogs who are 1. the younger ones one of them is a female, she had her first season this year in January, to witch this has changed Dustin and made him become very dominant and territorial towards my males. he has attacked them both to witch the most recent last two times has caused facial scarring, I have spoke to rescue centres, the vet to seek advice, to witch none of them could help with, I have baby gates all over my home, I have been having to separate them for the past 2 months, witch is no starting to take a toll on all 4 dogs. he’s been raised In a family home with other dogs fine until this year, he’s never locked out he has free roam unti the last two months. he needs someone who will have the time and dosnt have pets in there home.