Yes, males can be just as aggressive as the females. When Trillian first met Patch it was all hissing and growling. Trillian is female and the older of the two. Patch is going to be 2 this year. Ever since he was six months old he likes to chase Trill every once in a while and there's a lot of yowling and hissing all from Trill. A lot of the time though, Trill will also instigate the chase too. When Patch got out a couple of months ago she was actually crying and looking for him. So even though she doesn't want to cuddle up with him I think she does like having him around.

It sounds like Pearl is feeling a little threatened by all the new editions and changes. Some cats just don't adjust well to trauma in their lives. As long as you keep letting Pearl know that she is loved, hopefully she will settle down after a while. She's not going to get used to them over night so to speak. It sounds like the two new boys haven't been with you very long. Patch doesn't bother Trillian as much as he used to. My son gave him a stuffed Tigger to beat up so he attacks that more than he does Trill.