MY REPLY :
1) Apne yeh sahi kahan ki kahani mei kahi par yeh mention nehi hain ki Ajit had discussed about his married life with Rahul. But indirectly, kahani mein bohut jagah mein aap ko dekhne ko milega ki Rahul aur AJit dono iss baat ko highlight karte hain that they are bosom friends since childhood. They know each other very well. Thry can understand each other. They shared everything with each other. Story mein kuch "Between the Lines" bhi toh hoti hain.
2) Ek baat toh clear hain ki Rahul Manali ki either pyar ya havass mein pad chuka tha. Rahul pahele AJit ko yeh sab nehi batana chaata tha. Ajit kept insist him then he spoke about. Har insaan ka alag alag state of mind hota hain. Koi thoda jyada daring ho jaata hain. Isliye aap ke liye jo thoda jyada hain voh sayed Rahul ke uss waqt utna over nehi tha.
3) After Manali got to know about Rahul's Last wish, she was naturally very much shocked. Uske badh se uski zindegi mein lagatar itne incidents ghatne lage ki uski dimag se baaki baatein sab nikal gayi thi. Uske zindegi mein sabkuch tab bohut jaldi ho reht he, twist aane lag gayi the. Again it's a state of mind which depends on human to humna. Every human being are not same, and also not same their reactions and thoughts. That's why, all kinds of arguments, clashes have been seen everywhere among humans.
4) If you really think that Manali is not Loyal then I respect your thoughts, as it is your point of view.
5) Cancer naa aap ko hua hain, naa hi mujhe. So, it's very difficult for us to judge the state of mind of a Cancer Patient. Koi ekdam se tut jaata hain toh koi consequences ko accept karke apne bache kuche zindegi ko "Rangeen" banane ki kosish karta hain.
Anyway, Thanks for sharing your opinions.