I can't believe this! How much more will Santu bear? She's never happy for long and now she's leaving, which means she won't listen to DM's point of view. She's suffered so much, for example:
1) Got married to DM but not accepted
2) Before accepting her blamed her for Moti's raaz
3) When he finally accepted her, they only lived happily for a few days and then Arjan died and they separated for 10 yrs, 5 months and 13 days
4) Finally got back together after 10 yrs, 5 months and 13 days but happiness shortlived with arrival of Megha
5) Santu got pregnant (the happiest she's ever been) but kid was abnormal
6) The greatest happiness in her life was taken away from her when she miscarried
7) She got over the miscarriage and was completely devoted and in love with DM but then found out the truth of DM's infidelity.
Truth is I don't blame Santu for behaving like this because DM has broke her trust in him. I just hope Santu is not pregnant when the 6 month leap happens (coz it is common in EK's serial's). But I'm not sure if they've had a secret SR after the miscarriage but as we all know anything is possible in EK's serials.