When you’re depressed do you not feel like yourself?

My husband is depressed and won’t tell me he loves me in fact he’s told me he doesn’t love me anymore. I have started to feel like I’m not good enough for him. He told me it’s not that I’m not good enough for him. He said he doesn’t feel like himself anymore. Is this something that happens? We’ve been together 16 yrs so this is hard to hear. But I love him, do I stick with him, or do I take what he’s saying as the truth?