Please help!

I’m at a point where I feel like my boyfriend has become complacent in our relationship. I just don’t feel as loved by him anymore. I feel like he’s getting all the love and support from

Me while doing nothing to help me feel the same. I’ve spoken about it to him so many times and he says he understands but I don’t think he does. Part of me feels like I should walk away but we’ve built so much together. And this is a person I want to spend the rest of my life with. He has a new job that’s very demanding and stressing so sometimes I think it could be that. But how do I know when it’s fine to walk away or just brave the storm our relationship is currently going through?