No judgement - at a loss of what to do

🤷🏼‍♀️🤷🏼‍♀️

So my bf and I have been together about a year and a couple months. We’ve lived together for around 8-9 months. I love him to death, nothing he does really grosses me out. However, hes been in a state of depression or so for a month. And works 10-12 hour shifts at a warehouse. Well for the last month he has showered maybe 3-4 times. He showers usually less than once a week and im lost at what to do. I dont want to be rude but the only way Ive gotten him to shower is like “hey wanna take a bath with me” or “hey if you want me to help ypu do that why dont you grab a shower it’ll help” but literally, once a week max. What do I do????