Answer: First of all, we ask Allah to grant you recovery from the illness you have described, and you must bear it with patience and hope for reward. As for your refraining from marriage, this depends on your particular circumstances. If the reason is that you feel no desire for marriage—meaning you are not mentally prepared for it and experience no sexual inclination—then marriage is not obligatory for you in this case. There is no benefit in marrying when the natural sexual drive is absent, so there is no sin upon you for remaining single, for you are excused.
However, if you do have both the desire and the ability to marry, the Sacred Law prescribes marriage for you, and in your situation it becomes strongly recommended. Marriage offers many benefits, among them: protecting yourself from the forbidden and protecting someone else, and being a means for having offspring, which Islam encourages.
But if you lack the ability and have no instinctive motivation for marriage, there is no blame upon you for leaving it.
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Marriage Contract
Question: A man concluded a marriage contract with a woman and then divorced her before consummation. Is it permissible for his son to marry her?
Answer: It is not permissible for the son to marry a woman with whom his father had contracted marriage and then divorced before consummation, because Allah, Exalted be He, says: “And do not marry those women whom your fathers married” (Qur’an 4:22). This ruling applies to the mere contract itself, even if consummation never took place.