For animals with flighty/wild/nutty behaviour, if you take her to auction, she will most likely go to slaughter.
If she is that close to lambing, I would put her in the smallest lot/field or whatever you have so she can lamb... doesn't matter if it is in with the wethers or even the ram. The smaller the space, the more she will have to tolerate your presence. Once she lambs, let her raise them for 2-3 months until they are eating feed and then ship her. If you raise the lambs up in a more contained environment, they will hopefully get past some of their learned flighty behavior. Sheep learn from the ones they are with. If you have some that are super tame; let the lambs stay with them once weaned.
OR, once she lambs, take the lambs away and bottle feed so they become tame.... and get rid of the ewe....It is not important who wants her or will take care of her... it is important that she is gone out of your flock just like the ram you got rid of... And unless you are independently wealthy, the sheep should be sold to help pay for their upkeep. Not saying you have to make a fortune on them or sell privately and feel like you have to do a full disclosure. Animals that are sold at auction are there for someone to buy and to take their chances with them. If it is a breeding animal sale, or some thing that you are trying to sell to promote your good farm name, then it is to your benefit to sell with guarantees, full health disclosure, etc and so on. If it is just the weekly stockyard auction, then they are sold as is....no guarantees, nothing. You see it, you buy it, your responsibility if it is a good buy. Many of the adult animals that go through will go to slaughter. What difference does that matter if you do not want the attitude in your flock. That is the buyers decision.
As was stated above.... these are NOT PETS.... they are livestock that you have, to better your farmland by grazing, and to supply meat or milk or wool or lambs to sell, or chickens to eat or lay eggs....treat them with care, and respect, and use them for the purpose they were designed.... Real life farms are not Disney's "BAMBI" farms...
A wild, flighty or nutty animal will hurt you. It is different if they are in pain or injured, or a new momma protecting her newborn for a day or so.... BUT.... they need to learn you are not the enemy or a threat.
People are too inclined to make excuses for animal's behaviors.... yes I understand if they have been mistreated they will be less trusting and such... but there is limit, and a line to cross, to where you stop making excuses for the animal.
If they are not working in your set up or on your farm, they need to be gotten rid of. Where they go after that is not your responsibility. But they also should not be costing you money to put down unless it is an injury or health issue. Attitude gets sold and that money put towards a better animal, or better feed for those that do fit into your program.