PP - an alternative view

"What does she want the land for?
This may depend upon her issues as a teenager. If she has been fought over, or had to make a difficult choice and you alleviated her distress upon meeting then the recurrence of the same kind of issues and the lack of resolution could take her back to her teenage years.

If she wanted the land she would have insisted you bought it when you bought the house. Alternatively she would done something about it herself. She certainly wouldn't have turned the owner into an enemy. She's generated guilt in you for not buying the land. You not her. She's generating guilt in you for not approaching the farmer. You not him. Pavlovian.

"What benefit is she going to get out of ownership?"
Guilt relates to a very specific point in time. Your guilt materialized the second she became ill. To maintain your guilt she will dwell on the build up to it and the consequences of it. As you say moving house isn't going to remove it (you didn't help) and neither is buying the land (too late).

Whatever you decide to do, she still needs to feed of your guilt. Because of this she will make your life decreasingly uncomfortable. When she relapses she will find a more recent issue where your guilt surfaced and focus on this. She will also bring up the land issue as backup without going into it in detail. This lack of detail will confirm the land was never the issue. It will confirm it was your guilt in not dealing with it.

There was a case in here where a teenager was raped and it wasn't believed. Much later she met a guy, a friend of a friend, who listened to her story, believed her and gave her the reason why she hadn't been believed. She fell in love with him. Fast forwarding, they were out for a meal and she felt too unwell to eat anything. Outside the restaurant there was a fight where one was holding another down. When they left he had to steer her past them to get her safely back home. The following day when he returned from work he found a suitcase on the doorstep with his clothes in and the house locks changed. Attached to the suitcase was a love you, i'm not in love with you letter and a train ticket to his parents and another note that they were expecting him. When he returned the next day and forced access she was sitting with her head in her hands. When he attempted to console her he was met with a barrage of abuse and flying fists. Everything he had ever bought her was conspicuously absent from view. To her he didn't exist and was as good as dead.

Though they had been very close the situation was as hopeless as it could get. Her friends had confirmed she was still ranting about him months later as being the cause of her downfall. As soon as he heard this, on a whim, he decided to write to her about a day out he had with his friends. They had all been caught out on the moors without shelter in a thunderstorm. The friends were from overseas and had never experienced the likes of it before. They decided to strip to the waist and enjoy it. He didn't plea for the relationship, or mention the past, or love and he didn't even sign it. Two days later a five word letter came back. "Lets give it another go". Much later when questioned indirectly she couldn't even remember setting off for the meal out, or the fight.

There was another elsewhere where the parents refused to question the hospital over medication which the daughter felt was making her ill. An hour later she felt herself floating above the bed looking down at the parents and crash team trying to revive her. She pulled through. Fast forwarding, married and in labor she decided she wasn't going to have drug relief and would make do with gas and air. A couple of months later she changed the marriage into a platonic one because she felt he was guilty for not over-ruling her decision. Many years later they had too much to drink one night and allowed access getting pregnant again. This time the husband made sure all the medications possible were given to her. When he asked her how it was she said he had done exactly the same as he had done with the first child when he let her down. This didn't stop the platonic marriage changed back into an intimate one.

There was another where the wife was sent to Tibet to meditate with monks (the removal of negatives). I forget the details but he got her back again. There was another where a reluctant fairground ride renewed the relationship. Again I forget the details.

There's disputed research which links bipolar to gait problems and possibly hip movement. The researchers are suggesting the surface tissue of brain is underdeveloped and failing to link to other motive parts of the brain. The counter arguement is that the side effects of the medication taken is causing this. The experiments are being re-run to find out one way or the other. Another counter arguement is no two cases are the same and gait can depend upon the proximity to threats rather than the actual experience of the threats themselves.

This happened to me three times and all three had gait problems. I'm easily attracted to hips. None of them were bipolar though. Time will never heal this. Science might.