agree. its highly probable.
i think this may happen:
Virat falls in love with manvi first but due to his past etc is not able to admit it. manvi then falls for him and decides to tell him, but when she reveals her love for him he denies feeling the same way. hence, the rumoured heart break and pain.
broken manvi seeks solace in friend mannan and they may or may not develop feelings for each other.
seeing manvi with manan virat gets jealous ang to get her back and admit he loves her...but either its ends like kuch kuch hota hai ending, with virat marrying manvi in the nick of time (possible since v/m likened to kajol/srk) OR virat is too late and manvi marries mannan.
which might be more fair to poor mannan. this could also create more angst/tension between manvi/virat...with virman finally getting together through manan's realisation of their love or his death ;(
but would love to see jealous virat
or as threadmaker said manvi first falling for mannan (crush like)...that would be very cute and make virat v.jealous lol