My wife and i have been married for 6 months now. but thing are not working out. so she asked me to move?

which i did. i filed to register for permanent residency, with the way things are i have chosen to withdraw my case from the immigration. what are the process involved and in what way can it affect me if i decide to file with someone else after my divorce/ if i ever get married again. we have not gone for an interview and i have not recieved the EAD card?