citadel
That is what this forum is for

you can let all that out here, we understand and you won't get that frustrating "I dont know why you put up with it' response that puts you on the defensive and makes you feel even worse.
BPD is hard to understand unless you live with it, otherwise it is like trying to explain the intricacies of foreign poetry with someone who doesn't even speak the language. They simply loose interest.
By getting that out of your system here it allows you to indeed make better use of having "everyday" relationships with other people rather than being that person who is always complaining.
You don't need to be "on duty' all the time, the main thing is awareness of potential cause and effect and a basic understanding of how to minimize and repair damage done. Too much obsession with always having the right response sets a goal you wont achieve, that in itself is undermining.
We are not aiming for the ideal life, rather a happy life, if trying too hard for the ideal life is in itself making you unhappy you are missing the point.
eg
Putting yourself under extreme stress trying to avoid upsetting him vs letting him get upset and just go do something else that makes you feel better.
The problem is change is confronting, it gets a reaction, the reaction gets reversal back to status quo. We get nowhere and its rinse repeat. To break this cycle you need to weather the reaction. Eventually if the reaction gets no reversal the reaction stops and we don't have to keep doing it.
Reaction is scary so we temper the change, try to go around the drama, the change is not as effective, so nothing really changes, this is the walking on eggshells option that is talked about, makes us look insincere and trusted even less.
Dont cover up the BPD, just dont get dragged into trying to explain it in great detail, just acknowledge it. If some asks give them straight answers without trying to teach them the whole text book. Otherwise you become known as the crazy woman married to the crazy man. There is more to you than this, believe it.