fighting between leos

[Icefire]

I had a fight 2 weeks ago (I only saw a leo badly hit)
well now almost 100% recovery with my little healing method lol

I saw they were 2 male out of my 5 leos so I took the other
out (other was beeing healed)

problem is, yesterday I heard a noise, I ran to the terra...
I saw my biggest little piggy with a hard grap on snowball tail!
well I think it's piggy lol It was 3 left in, I know the one who was
attacked... But I verified.. all 3 female

they are all seperated until I get my terra in wood done
so it's just weird... if it's piggy, she did grow faster but went it
comes to handlying, she is the sweetest, I can do pretty all with
her. Could it be only aggressive toward other leos?