I’m really sorry you’re going through this, it’s so tough isn’t it. I don’t have the answers but really know what you mean about feeling tired and drained.
I am still with my husband because we had a child together by the time I found out he was an addict. My husband is in recovery and has been for a good few months but you can’t switch off once you’ve been through what we have, so I’m constantly checking up on him and he hates it so our relationship isn’t good.
If you want children I would really consider getting yourself out but I appreciate how hard that is. Sending love to you x