hi. from your text it appears that you want to consume marital relationship.
my advice will be
marriager serves more purpose apart from having children. The mentality of your husband need to be changed. your inlaws are less helpful in this matter.
see if your husband is acting under influence of that lady which you said he engaged with.
if your husband values you, respects you then you go for continuing the relations otherwise go for divorce. because some or the other way he wants to get rid of you. if he want to go by legal means its ok.
why do you want to stay with your husband when he dont want you and need u.
try to convince your husband for the option of adopting child rather than breaking marital ties.
if your husband is mature enuogh he will understand it and will not spoil the relation for this reason .
your problem is phisical one. and you have to council your husband in way that he will realise that phisical problems are cannot be cure. our body is of preshable nature. it is going to change day by day. its a law of nature. even if u r healthy today u cannt guarantee when u will feel seek . and decease may be of any type curable or not curable. this is decease like cancer / dibetecs or high b.p. , and we cannot leave the person if they suffer from high B.P. or Dibetec even thy r harmful disease. today the familis are showing good attitude to the person affected by HIV AIDS . then why this injustice to you
your matter need counciling . what court can do
cout wil help u to compel ur husband to live with u but cant compel him to respect u and love u inspite of ur illness.
if u think ur husbi can leave the woman , then go for conciling . otherwise prepare to get separate and start your life with new vigour. life dosent stop. dont waste your life for person who dont understand the value of life. furthere help pls mail me - adv.vinayasakpal@gmail.com