What is the ruling of the Sharia on dealing with a person suspected of sexually assaulting the questioner while he was asleep, which led to the questioner feeling humiliated and desiring revenge, and what is the way to get rid of these feelings while adhering to the teachings of religion?

Indications and circumstantial evidence do not provide certainty and are not sufficient to prove the accusation of Qadhf (false accusation of fornication). You must beware of Satan, who incites enmity. Fear Allah concerning yourself and your brother's honor, and do not accuse him without clear proof. Murder is one of the gravest crimes, so beware of falling into it. If it is proven that your colleague committed such an act, you are not permitted to take your right into your own hands; rather, it must be sought through the competent court.