I’m so sorry to read your post about how your partner’s heroin addiction affects you. I know how tough that is and how easy it can be to enable.
You may find it useful to contact us at The Icarus Trust as we are a charity that supports people, like yourself, having to deal with a partner’s addiction. If you contact us, I could put you in touch with one of our Family Friends. These are our very experienced and trained volunteers. Talking with one of them might help you to make some decisions and find a way forward.
You can contact Icarus Trust on help@icarustrust.org or visit our website http://www.icarustrust.org
All the best to you.