Thanks everyone for your time.
I agree with Trekster, it sounds like dissociation.
I experienced last "episode" in July, when I opened this thread. Everything went better in a week or so, not a long time but not too short too.
I think that my auto-diagnosed Asperger has a lot to do with that: when I have a special-one I struggle to see things for what they simply are and so, when everything is fine I feel I can trust this person (totally) and when there is a problem (I feel hurt) then I feel that the whole
relationship is a mess and I can't totally trust this person anymore. You know... it's just like an on-off switch. I don't know if my english is sufficient to explain these kind of sensations.
The person who choose to live with me has to be very patient but most of all she has to be very CAREFUL. What she says, what she does, could have very painful effects on me. Effects that can ultimately (and not so rarely) lead to an emotional blackout. I know and I understand that the things that hurt me the most are not even annoying for other people, so I think that it must be hard to "learn" such a strange behavioral pattern...
So I agree with Ajl, it's just someone not doing things the way "I want", even uf this kind of expression has to be understood in an aspie way.
Louie, please, could you explain what happened to you and how you reacted?
Thanks again to everyone.