Is it normal?

My boyfriend of a year and some change got fired about 4 days ago due to missing a bunch - The schedule wasn’t working out with w his bipolar and he was constantly over sleeping, would be too depressed, or something else along those lines. Trying to be understanding and supportive, I’ve been talking to him, try to cheer him up, all the stuff I thought would be the good girlfriend thing to do. I’ve even offered him a job at my work and even asked a manager for him. But for some reason, he’s been acting really different 😕 He barely talks to me, shows no affection unless he wants sex, and seems really on edge. If I do/say anything that rubs him the wrong way, he gets an attitude and storms off, even if it’s something small - like I took a shower and he came upstairs when I was done and asked if I was going to go downstairs after and I said “yeah”, and planned to after getting dressed, but ig he didn’t like the tone I said it in so he didn’t say anything, went out of the room, and shut the door. I understand he’s upset about this job and I have gone out of my way to show him, but it’s not fair to take it out on me. I didn’t fire him, I didn’t cause him to have bipolar, I didn’t cause him to be depressed (or at least I really hope not)