Filing for quashing

Dear learned members, I filed 498a and 326 IPC against my husband and his parents 4 years back. From a year we are living together on a condition that I'll not be hostile and we will go for quashing, he agreed. I'm pregnant with 2nd child now. He is forcing me to turn hostile or I'll have to file quashing myself. PP suggested to go for mutual quashing. Please note I have strong evidence and I got back for the sake of kids future firstly. For not being hostile I have personal reasons that can't be stated in public form. What is the difference between I filing for quashing and mutual quashing? Which will be the right option to save my marriage? Kindly clear my query. Thanks in advance