Section 25 Hindu Marriage Act: Confusing aur Bizarre

Ab main samajh nahi pa raha hoon, kya main hi confused hoon ya yeh section toh isiliye likha gaya hai ki hamaare liye samajh nahi aaye. Section 25 ka matlab hai ki agar koi husband ki age 45 ya usse jyada ho gayi aur kisi bhi reason se divorce hua to wife ko ek year ka alimony milna chahiye. Lekin phir yeh kya hai, ek baar woh alimony mil gaya, ek saal ke andar hi uska husband phir se shaadi kar sakta hai aur phir se ek aur alimony mil sakti hai. Yeh kaisa hai? Section 25 ki yeh condition toh kya? Kya hum ismein confusion ke saath hi rahenge?