I feel for you, and am not sure what to say...
However, my take on this, that I'm getting from your post, is that you are, rightly, very frustrated and hurt,and don't really want it to come to separation? I think you really need her to pay attention to what you are telling her and for her to show some love. Her comment that you 'should love her unconditionally' goes both ways, in that she ought to also love you, and love is shown by how we treat one another.
MY second thought is the same as someone else has said; she may well have 'cabin fever', a sense of depression and boredom being at home for a long time. Believe me, it can get you down if you don't get out enough, if you're short on sleep or if there are other extenuating circumstances. Only you will know whether there may be any factors that could be leading to depression in her. Depression doesn't have to be a totally obvious thing, it can be a low grade, subtle apathy about life, a loss of being bothered about things, a loss of perspective. Sometimes we need to get a fresh perspective, get out more, spend time with our spouse alone, and talk.
The only one who may be able to answer whether depression is involved is your wife, and she does need to counsel with someone, and you. Honestly, I feel for you, and know you want to be a good husband, but you are not wrong for feeling so frustrated.
I will mention your situation in prayer, and ask God to be near you and undertake for you right now.