All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
If what you mentioned in the question about your husband is true, then he is wrong by establishing an affectionate relationship with non-Mahram women as this is forbidden and an evil matter and it may lead to what is even worse like committing adultery with them. It is for this reason that Islam forbids establishing such a relationship as we clarified in Fatwa 81356.
Besides, acts of disobedience have its negative effects on marital life, among which is the change of the behavior and treatment of each spouse towards the other; Allaah Says (what means): {And whatever strikes you of disaster — it is for what your hands have earned; but He pardons much.}[Quran 42:30] Moreover, some scholars among the Salaf (pious predecessors) said: “I disobey Allaah and I indeed find the effect of that in the way may riding animal behaves and the way my wife treats me.”
Therefore, we first advise you to be patient with your husband and be keen on admonishing him about the sins and evil deeds that he commits, and you should clarify to him the seriousness of this on your family. In any case, you should avoid preventing him from his rights on you among which is answering his call to bed as there is a severe threat for a wife who refuses her husband's call to bed without a sound reason. We already clarified this in Fataawa 96046 and 88574. Also, we advise you to supplicate Allaah to guide your husband and turn him into a righteous man.
In fact, the existence of love between spouses is not a condition for the continuity of marital life, as there are other benefits which can make the marital life continue, among which is the benefit of the child and his good nurturing. Therefore, you should be keen on achieving reconciliation and rectifying your husband as much as possible. For more benefit, refer to Fatwa 90622.
In case your marital life has gotten worse and you hate your husband and you fear that this would lead you to fall short in fulfilling his rights on you, then it is permissible for you to ask for divorce even in return for compensation. However, you should not ask for divorce or Khul’ until you balance between the benefit of divorce and the benefit of staying with him and being patient with him.
As regards your disease, then we ask Allaah to cure you from it. If you are unable to serve and nurture your child due to your sickness, then it becomes an obligation on your husband to provide you with a maid. Ibn Qudaamah said: “If the wife cannot do household work because she belongs to a family of high status or she is sick, then it is an obligation to provide her with a maid: {…and live with them in kindness.}[Quran 4:19]; and among living with the wife in kindness is to provide her with a maid, and since she is always in need of a maid, then offering her a maid becomes like spending on her.”
Finally, your family is not obligated to support you in this regard, but if they do so, then this is good.