Hi sorry for my late reaction. I wanted to wait a few days to try to think about it.
Anita, yes, you are right. The win-win, and helping each other, i have that with most people there and that is wonderful, that it is possible. I like giving and with those people i can do that, because they also look after me and give to me. But indeed, i have to know with who i can do that, and put up a big wall with certain people. It’s now not only anymore about that task – now it is evolving that the boss wants me to do an other task, which means that i’m learning a new, interesting skill, so i’m happy with that. But it is in general with the way she behaves about me – i won’t start boring you with all the details.
I don’t know about the barking though. It is not my style, and my experience tells me that it doesn’t work with her. If i try to bark with her, she just barks back, and louder than me, and i get afraid. If i try to discuss with her, she will keep denying what i see, even though she is clearly lying. So i’m trying more the silent approach, trying to say ‘i do this’ – or whatever it is about and not discussing too much, but staying with what i first said. That seems to fit me better, and to work better towards her. She will argue a bit and then go.

Thank you for pointing it out so nice each time: “the right thing… or easy?” i have some work learning to see the difference between those 2 things. I can be very good at self-deception.

@Lovelimess, yes i find it difficult to go talk to the boss. There are a few bosses, but they are so laid-back and not caring too much, that i don’t know who would be best to talk to and if it would make sense. And then i am worrying so much: what are they going to think about me etc, that keeps me back from it. And then i say to myself “i don’t like to be the kind of person that goes complaining to the boss about a co-worker, that is childish” – which are probably excuses again.
Anyway these days she is making it worse in her attitude towards me, at the moment i’m just letting it happen but i’m starting to think to say something to the boss. Hopefully i manage to do that one of those days, because that would be the right thing to do. I think i have done more than my share in trying to talk with her.

Jack, thank you for your reply, i try to reply you tomorrow, tired now.

I am trying to work on it, but is goes very slow, i guess i’ll have to accept that.