naomi24
But you're not just a wife.
You are many things. One of these is a wife. You are also (where context applies) a spouse, a partner, a daughter, a (possibly...I don't know your circumstances), a sister, an aunt, a daughter-in-law, a niece...etc.
And more importantly, this website, and it's supporting literature is not aimed at you specifically...it's aimed at everyone who reaches for it as a resource. And because everyone has different concepts and definitions of their relationship status, my guess is that the authors wanted to choose a word which encompasses as many relationships as possible.
I think the point is - you are a wife, and this is how you define yourself. However, it would not be semantically wrong to say that you are not a partner.
However, if your other half were a woman, it *would* be semantically wrong to refer to her as a 'dad' in this context...however, 'partner' would cover both same sex couples and mixed sex couples...
And it would also cover those couples (especially younger people) who are in a relationship, but are not yet married. They tend to refer to each other as partners (boyfriend and girlfriend being a little inappropriate after a certain age).