He said he doesn’t know if he loves me...

As a preface, my bf and I have been together for 2-1/2 almost 3 years. Throughout that time, he’s dealt with depression (as have I). The only difference is he has been self-medicating with pot. Like, to the point he has to smoke nightly.

When we first started dating, I had no clue that he smoked. I didn’t know for the first 5-6 months of our relationship. When I found out, I tried to communicate how I felt about it. I wasn’t 100% against it, but it’s not something I ever wanted in my life. He decided to try and give it up. I thought he had. Fast forward to a few weeks ago, and I find out he’s been smoking again. After asking about it, I find out that he’s been hiding it from me for 6 months. I asked him why he lied about it and it turned into a big fight. It ended with him saying he’d try to give it up again.

For the past few weeks of him not smoking, we’ve just been constantly bickering. Last night, we got into a fight (not related to weed) and he began to breakdown. I knew he’d been struggling mentally and had asked him a few different times to consider going to talk to someone but he refused. He completely broke down. He told me that he didn’t know if he loved me because he didn’t feel anything at all right now. He was numb.

He’s agreed to go talk to someone and try to actually take care of his mental health. He wants to work on the relationship as well. Am I wrong to stay and try to work on this with him?

I love him very much and he’s been there with me through all of my mental health struggles. I feel like I can’t just walk away (not do I want to). I want to work this out, but am I wrong to try?