mukund and sultan don't know about Madhu except she is beautiful , good at heart ,ready to help . from inner heart both know that Madhu only treated them as friends magar unki pagalpaan unhe khud ba khud ek duniya create kiya that they love Madhu and Madhu had soft corner for them soon which turn into love . agar mukund wapas atha who bhi sultan ki tarah hota . waise now also mukku has same attitude . roma , mallik ,trishna know Madhu as Glycerine , good at heart with small small dreams .
padmini who is mother of Madhu with whom Madhu used to share everything but doesn't know about Madhu's feelings during unwed drama .
radhaji and bittuji thinks Madhu can give back to RK , good person with good soul , loves RK a lot and for Madhu RK is everything and even more than God . phir bhi shaq kiya . radhaji during RK shot by mallik and bittuji Rishbala ki divorce drama because of sultan .
RK ho yeah Superstar RK ho always know Madhu well and can read Madhu's eyes . he's been jealous had insecurities magar Madhu par shaq nahin kiya .
padmini asked Madhu whether she loves mukku when mukku's mother came for rishta . from childhood she knows about Madhu phir bhi sawaal poocha .
Superstar RK met Madhu only twice face to face , seen with mukku once . on Madhu's engagement RK met third time . RK said to Madhu that jo trishna bhi nahin jaanta who jaanta hain and asks her jitna mukund pyaar kartha hai kya aap mukund se pyaar karthe hain . RK ki awaaz mein confidence that she had only sympathy towards but not love . during unwed time RK is jealousy because of him as he know Madhu needs someone as she is been broken because of him aur who support sultan se na mille . at that time when Madhu , dips play game to bring sultan to Bollywood party , one's thought , that's dips that RK throws Madhu out and Madhu wanted RK to be guilt . but RK had different thoughts that he's drama he did in party but never let Madhu leave him or sent her out of RK Mansion as he would have fighted with her as their relation started with fight but never let Madhu leave RK from his life .
jo Madhu RK ke saath thi jaisa woh kabhi bhi kisi saath nahin thi like RK . both RK Madhu always been like themselves when both were present never had any boundaries to stop them to be themselves . so, my option is RK and Superstar RK .