I want to sext my husband..

I’d like to start off by saying it’s not that I (26F) can’t, it just feels awkward to do with him (38M). I really want to talk dirty with my husband because we don’t really do much talking, or really much communicating. But, I’m a dirty girl behind closed doors. Before we got together I used to snap my best friends (straight women non-sexually) naked body pics because we uplifted each other and complimented each other even on our “ugly” days, but lately I feel awkward even doing that too. I’m less confident than I used to be. I want to role play over text through out the day and in situations we shouldn’t be talking dirty in and he doesn’t role play reply back to me, or worse changes the subject to something non-sexual. Outside of the bedroom we’ve been going through a tough patch. I’m plus size now, like a big ‘ol 16 gal. We have a baby that will not sleep through the night and numerous other children. He’s been married before, but I never have and any argument we get into ends with him wanting a divorce lately. I love him and I don’t want a divorce in fact I’m horny and I want him to act like a mammal sometimes.. I think my confidence is so bad because I’m a stay at home mom and he told me I’m worthless. Since that argument I’m worthless has kinda stuck in my head and everything feels awkward. I want to make things better and I’m not sure what not do. Outside perspective would be very welcome because I don’t talk to anyone in my life about my sex life or problems in my marriage. I seem to be having problems I can’t sort out in both. I just don’t know how to initiate with him in a way he wants to receive it I guess.