Do drug addicts seek out other sexual partners?

I do not know what the reason is for you asking this question, but I have always suspected my fiance of five years of cheating and I have just caught him smoking black tar heroin. I understand from most of the information I've looked at that being addicted to heroin tends to severely change that persons life style and money issues arise and they lie and hide information. They act very suspicious. I don't care If I ever find out the truth about him cheating because him smoking heroin and trying to blame it on my son was enough to kick him out. Think of your self and your children and be strong. Leave or kick them out. Your worth more than that. You can be happy again. Do not waste your time and energy on trying to figure out if they are lying or cheating. You will feel better being you again trust me. It is hard to hear our two and a half year old ask where daddy is and I do cry for HIM but I know my son will be better off with out him and without me stressed and unhappy. Drugs change the way their brains function. They only care about getting money to get high. Love yourself and your kids! Best wishes to you!