i am wanting to go live with my wife for a little while in the Philippines , we are planning on doing the IR with my sister as a joint/co sponsor. i am wanting to stay for around 6 months as i tourist. will this affect my US domicile? will this hurt me in anyway when it comes time for the interview?

NO, what you need to do is continue to receive mail at your US address, maintain a bank account in the US, maintain your state driver's license, and continue to file IRS returns.

This is a "IR-1 / CR-1 Spouse Visa General Discussion" not K-3 question so should be in the IR-1/CR-1 forum.

How about updating profile to show what you filed for, and country?

http://www.visajourney.com/timeline/profile.php?id=39682