Can a husband forse you into a div?

me and my hubby has been sep. 4 11 months. he's is in a relationship with this girl. and i think she is forcing him 2 do it but i want some questions answered first and he won't give them to me i signed the papers but im still holding the exspences paper u have to fill out can he do anything with me still having them papers till i get the answeres i want