Fiance troubles

Asking for advice... my fiance is helpful with cooking and housework, and will watch our 3 month old if i go to tbe gym or take a shower but as soon as i am donedoing something he hands him back immediately. If im getting ready and our baby is crying if he doesnt stop after 10 or 15 minutes my fiance gets frustrated and mad raising his voice saying he rocked him, doesnt want a bottle or paci so hes putting him down to cry since it doesnt matter nothings working. My fiance also does this while im at the gym calling me home cause hes freaking out and losing his temper and he has a short fuse. I cant go anywhere far or more than an hour because he vant handle it. I would like to be able to go do something without rushing around or gettung a babysitter cause he cant handle it. Id like for him to appreciate all i do since i watch our baby 95 percent of the time, but leaving our baby with him for the day to see what i go through doesnt feel safe to me. What would you do in my situation, id like for him to be able to handle him and be able to watch him more.