Please read need advise not attracted to husband

So I am not physically or sexually attracted to my husband we have been together 6 years married 4 . Let me start off by saying when we got together I was broken and in a bad place and he was so different from all the men I have been with . I mostly dated fit men or handsome men .. my husband is more or a Computer nerd . I had a son from a different man and my husband took him on as his own and he makes me laugh all the time and he is good to me and supports our family like no other . Over the years he adopted my son from another man and we had another son 4 years ago . So back to the attraction thing ... I have always felt like this since we got together , he really isn't handsome to me . I mean I think his eyes are amazing but other than that I don't find him handsome or attractive ... there are times that I think I can do way way better I know that sounds horrible but it's how I feel . Sometimes I think he is attractive and then the more I stare at him the more I think he isn't ... but he is good to me and our kids and I truly love him and in love with him ... but he complains we don't have enough sex or play time ... I just never want to jump his bones type of thing sex is ok but I can get off with my toy better while he is working ... is there something wrong with me ?!? What should I do ?!? Or what can I do ?!?