Don't know what to do?

So lately my fiancé has been in a terrible mood and he keeps saying he's done, he can't deal with it anymore, he's tired of it. I haven't done anything wrong. He has a problem when I go to work; reminder, I work at a daycare. He keeps saying I'm going to work early so I can meet my boyfriend. But I don't drive so I have to ride with my sister. He has a problem with everything I do. I'm stuck and loss for words. Im hurt by his words and I just don't know what to do. Can you lovely ladies help me out and give me some advice please? Thank you! 💗