Oh dear, I'm sorry that you had a bit of a 'panic' session (or two of them!). I'm sure they will all settle down eventually, and I think you are doing a great job working with them all to create harmony.
Not wishing to be a 'doom and gloom' agent, I would just like to make a couple of points for you to think over. Booker and Dollie have been together for some time and it seems to be that for some reason Booker thinks of Dollie as a friend and not as a mare for potential breeding. Whereas he has now been 'presented' with a new/different mare and when she comes into season, he may well 'feel' entirely different about the situation!
Many young stallions will chase a mare when she first comes into season, the aim being to 'wear her out' and get her to stand still. Experienced stallions will not bother to waste their energy, knowing full well that when she is ready for covering, the mare will actively seek them out! So please watch very carefully, as I dont think that at the moment you are intending to do any breeding, and you might find that Booker suddenly wakes up and tries to test his newly found abilities!
Seondly, and most important, you say that everyone was pretty exhausted (I think you mean horses as well as humans?) and Booker was 'dripping' with sweat, well just imagine how long this might have gone on had it happened during the night, or when you were out, away from the place? Booker might have been ok - he's been well fed and looked after, but your new little girl may not be in such good condition, plus she is feeding a foal, and an exhausted mare is going to lose some of her milk production capacity, quite apart from being extremely stressed and worried about the well being of her foal. It has been known for a stallion to run a mare completely into the ground, to the point of complete collapse. Not a nice situation! Not to mention how fast a foal would become exhausted should it not go and stand to one side.
I'm sorry to be the one saying these things, but it really worries me - Booker's 'behaviour' regarding Dollie is not the normal one between a stud and a young mare, and I'm just worried that he could change in his outlook and upset all your good work in trying to make a happy little herd of four very sweet minis.
Thank You for the heads up. Booker is 3 and i have had him since about 2 months old, Dollie is 4 and i have had her for over 3 years, For the 1st 1& 1/2 Booker was in a pasture with a rescued mare from the same farm he was at, she had to be put down 8 months after we got her - Dollie was in a different pasture with another rescued mare, So I put Booker in that pasture with the 2 mares all 3 were together for 6 or so months & that other mare went off for training & to live at her new home, So its Been Dollie & Booker for the last year, & we just move here 2 months ago, When that chase happened it lasted for 10 - 15 min tops, I have watched them like a halk & have not seen any more then the Mare doing her walk inbetween Dollie or Booker IF they are to close to the foal 15 feet or so, The mare will turn her butt tords and they know to walk away, She does not kick much now .. We have seen them just a foot or so away & the mare does nothing to, so i will just keep doing what i been doing .. I have the cleanest yard, and have check off most of my out side todo list LOL I can see the pasture from my Kitchen livingroom & dinning room windows so those rooms are all so spotsless LOL WE check them every few hours at night, BF is up till 3 or 4 am and then I am back up @ 5:30 The longest someone has not been home to keep an eye on them is 4 hours and that will be today... so fingers crossed,
Feed time is going good, Booker & Dollie eat in the barn and mare & foal eat on the far side of the pen. If this hole thing gets to were its not going to go GOOD I will make another pasture. I plan to make the "Pen " with in there pasture larger & with a full gate... I will start feeding the foal in there once it is done, I think the mare is to pushy with food, they have there own bowls I set them far apart But the mare will push the foal out of it I have seen her paw and kick the foal to.. not sure if thats becaused she was starved or just her pushy way.
I have a good bit to get worked out... But will ether have a happy bunch or 2 pastures with happy horses & I still have the make shift area that the mare & foal were in just in case something has to be done NOW...
Thank You for everyones help