What should I do about my husband who refuses to seek help from a counselor or psychiatrist, and suspects that I, his father, and his siblings are monitoring him because he is accused of being an "agent," which is affecting our children? Will the situation worsen if his refusal continues, and is he sinful for insisting on his refusal?

Actions of a husband that indicate he is afflicted with something unusual, which may result from organic or psychological illnesses, necessitate convincing him to consult specialists. It could also be due to possession or black magic, in which case he should be treated with legal ruqyah, and have water (Zamzam is preferable) recited over for him to drink. It is also recommended to make abundant supplications for him, and the ruling on his sinfulness is tied to the extent of his awareness of what emanates from him.