Acute depression

Hi all! My 30 yo boyfriend has come down with depression. It started one week ago when he found out that he didn't get a job he was hoping for. He was the 2nd choice and the person they went with was less qualified but seemingly had an "in" (as the best I can figure out). He hates his current job and now feels stuck and feels that life isn't going to plan. He was feeling that if he got the job, everything would be lining up and finally working. He has said things like "when will it be my turn?" And "why am I always the 2nd choice?" I went on a business trip with him over the weekend and was able to mostly pull him out from what I call "the tunnel" with 2 hours. But since then, he has gone back, now directing his depression towards me and my lack of being there for him (we live 1 hour away from each other and I have young kids who have had birthday/illness this past week - bad timing). He has had moments of the tunnel before in our relationship, but never more than a few hours. He is a reserved introvert and prefers not to talk to most people. I bring him comfort, but only when in his direct company (the phone doesn't work). Any suggestions for homeopathy are greatly appreciated as he hates to swallow pills but I may be able to get him to suck on a tablet. Thank you!