Help! My mare Haley (alpha horse) is having major jealousy problems. Short background: We had two horses; the older gelding died in Dec 2007. After much searching, we ended up purchasing two new horses (full-siblings; an 8-yr old gelding and a 6-yr old mare). We brought the gelding home, but the mare has never been trailered or ridden. She will arrive in a few days after she masters loading in a trailer. Haley was delighted to see the new gelding and made good progress with the new gelding (he is now in the next paddock over). All was well until Haley saw us give him attention. She is now ballistic whenever we touch the gelding. She will swing around and try to kick us (and know it is not just a threat). As long as I go out and ignore the other horse completely, Haley is normal, but if I look at the other horse, or heaven forbid, touch him, her ears go back, she flips her rear towards me and tries to kick. Then she gets mad because I stand my ground, so she then goes bucking and galloping around the paddock. Any suggestions?