What will Dhruv do ?
Dhruv will do exactly what Sumit did twice earlier. Twice before Sumit chose responsibility over love
First when Sumit got married to Kumkum, it was responsibility over his love Renuka,
Second during Jatin's humshakal, Sumit did leave Kumkum for Jatin. That time too it was responsibility over his love his wife Kumkum.
What will Sharman do ?
To get everything alright emotionally disturbed he may just get married to Siya to resolve all this.