Snappy!

[kellylou89]

not sure if i am posting in the right section, apologies if i am not.

Hi, i am new here and i need some help with one of my dogs behaviour .. i have two SBT's .. one is a 17month old castrated male (Vinnie) and the other is a 9month old un-neutered female who recently had her 1st season in november (Skye)
i am trying to nip skye's excitement behavior in the bud! she has become worse since her season .. and i can see SOME progress with what we are doing which we have been doing for almost a week now .. However i wanted to ask if anybody has ever had this same problem with any of there dogs etc and can give me some advice?

Basically we have been doing this for the jumping up
*Pushing her down while saying DOWN! and making her sit
*Turning around and ignoring her
(she will only get fuss if she is sat down calmly)

For the Chasing of Vinnie when he gets fuss
*we tell her firmly NO! SIT DOWN!
*If she refuses to stop or calm down she either gets put in her crate or outside for 5mins

She is also snapping at vinnie alot lately WHICH IS THE WORRY I HAVE!! .. i want this sorted out ASAP i do not want her too carry it on because i do not want it to get that bad that they have to be seperated because vinnie has faught back or even us having to remove skye because she has gotten worse and attacks him .. i want this ended NOW before its too late because i love them both dearly and they do really get on, its just when she does this!!.
What happens is she will snap at him usually showing some teeth she hasn't actually ever made contact with him and bitten him but she goes right upto him and snaps .. Usually it can be over food so she eats in her crate, or it can be if they get too excited in play, so i end it if its getting too excitable etc etc, Once or twice she has done it when they are in the kitchen while we are eating and we haven't seen why.
she will stop when we shout OII!! and we have been putting her outside when she does it etc .. the thing is they are all cosy and lovey again with each other moments later and will be snuggled up fast asleep, so its not like they dont like each other because they do, but i dont want it to get too the point where it gets too much and they dont get on! that would crush me.

Does anybody have any idea why she is doing this? and how we can stop it? i am willing to stick at anything to change this behavior for her sake .. Vinnie wont put her in her place so i think skye has made herself more dominant, this has only ever been since her season!! (do i desex her asap feb is earliest as its 3months after) or do i leave her to get her hormones sorted etc.
Any advice will be GREATLY appreciated.