Are the reasons mentioned sufficient to request separation, and does the husband's going to sleep angry, without any fault on the wife's part, necessitate the angels' cursing him?

Masturbation is forbidden and is considered abhorrent for a married person. However, it is permissible for a husband to masturbate with his wife's hand.

A husband treating his wife aggressively, or beating her without a legitimate Shariah reason, or preventing her family from visiting her, contradicts the words of Allah Almighty: "And live with them in kindness," and the words of the Prophet, peace and blessings be upon him: "And treat women kindly."

If a man goes to bed angry with his wife, but it is not her fault, then she is not subject to the threat mentioned in the hadith about the angels' curse.

If the wife suffers clear harm, she has the right to seek divorce. However, it is advisable to be patient, supplicate, and try to appease him. She should not seek divorce unless she strongly believes it is the better option.