Is it okay to not being attractive to your partner?

I'm 23 and I've been with the same guy for five years.. we have a family.. I'm not married to the man; Things he does or doesn't do makes me less & less attracted to him.. he doesn't like to exercise.. he's not persistent when it comes to things that need to be done.. he's very jealous when it comes to guy friends I'm open about.. what should I do; my thoughts are that I've been patient to the point where I think I should start doing other things..