Hi Dia

I had some similar experiences. First, about your mother-in-law asking if you are no longer Muslim: Muslims would ask me quite often whether I was "still Muslim," especially if they hadn't seen me in awhile. I was a convert, and I suppose they asked because many converts leave Islam, but at the time it would infuriate me because Islam was important to me and I took it very seriously, and I felt that they weren't taking me seriously as a Muslim and trivialising my efforts. Of course, I eventually DID leave Islam, though possibly not for the reasons they expected. But with that in mind, and how your mother-in-law asked you, perhaps it wouldn't be a big deal for your husband's family if you stopped practicing. Maybe you don't need to mention that you are an outright kafir, just that you're not taking things so seriously.
And with that same idea, your husband already didn't expect you to keep up the hijab, so just take it off and admit he was right. I know we don't want to admit our man is right about something

but it will be soon forgotten. As for your friends/inlaws who may be concerned, just tell them you thought you were ready for hijab, but you are finding it difficult and you don't want to be a hypocrite, so you are taking it off for now. I too went through a phase like that. When I first converted I wore the hijab for a few months before I realized it just wasn't me, so I stopped wearing it. Everyone understood and were really nice about it.
It sounds like you are pretty fortunate with an easy-going husband. Hope you don't have too much trouble getting him and his family to accept a different version of you
