ADG - What does you not being able to find yourself a good boarding barn have anything to do with the OPs MIL not wanting to have to take care of another horse for the OP?
I am sorry you have not been able to find a good boarding barn. That does have to be frustrating.
Since you used to take 100% care of your horse(s) you do know that it is more work than most people realize. So it should probably make sense to you that the MIL does not want to take on another horse. Add that it is clear that the OP does not really appreciate what she has, only having to do chores part of the time, etc. That too might be part of the reason the MIL does not want to bend over and accept another horse.
And adding another horse, as I am sure you know, is not just adding another horse.
I know when my filly was out for training and I was only cleaning up after and feeding one it was like culture shock when she came back home. Double the work. Adding one more horse is lots more work. Lots more wear and tear, lots more supplies, lots more manure to manage, etc.
The OP has been offered ideas on how to get this horse.
Edit to add:
Originally Posted by AussieDaisyGirl
I am not some 16 year old pony-crazed girl stamping my foot at the wrong doings of the world.
Glad you told me this. I probably would not have known it otherwise. At least not from your posts in this thread. ;)