Will God accept the repentance of a person afflicted by sexual desires who committed forbidden acts, and who fears that God will not accept him, and is he obliged to inform his future wife about his past?

Adultery is a major sin that necessitates sincere repentance. Adultery is one of the most heinous abominations that provoke God's wrath. All divine laws and sound human natures have universally agreed upon its prohibition.

Whoever has been excessive in sinning against themselves, then repents with a sincere repentance that fulfills all conditions, God will accept their repentance, even if their sins are like the foam of the sea. A sinner should not despair of God's mercy; rather, they should return to repentance every time they sin. For God replaces the evil deeds of the repentant with good deeds.

Do not inform your wife of the sins you committed, as this is from the whispers of Satan, and it is the Muslim's duty to conceal themselves after their repentance.

Repent to God with sincere repentance before marriage, cut off your relations with the place and the people who shared in the transgression with you, and avoid everything that could lead you back to it.