Husband never talks

He’s stressed with work and he started opening up to me and then suddenly he tells me nevermind I don’t want to talk. I don’t know what to do we never have meaningful conversation anymore or talk about anything, if we have a problem his way of dealing with it is avoiding it and this is how he is with everything. We literally do not have any deep or meaningful conversations. I don’t know what to do this is becoming a big issue...