Yes it hurts, a lot of what I read on the family and friends sections can be hurtful. I have been clean for about 8 years and I realise that I hurt a lot of people when I was using. I have made amends and have tried very hard to clear the wreckage of my past.
When I first started going to meetings I was told that "We are not bad people, just sick people trying to get better". That made such a difference to me because until then I really did consider myself to be a very, very bad person.
There were so many reasons that I used drugs, mostly to numb all the pain I was in. I found during my addiction that the people that got romantically involved with me were just as sick as me, they just didn't take drugs.
Some of the best people I have met are recovering addicts and alcholics, we are not mosters whose main purpose in life is to destroy other people.