Please help me. I know this is is no replacement for medical advice from a professional, but that is not possible at this very second.

I have been with my Boyfriend for 5 years. He is a great, nice guy. He has had Type I diabetes since birth, so was medically fragile, especially as a child. Therefore, his mother was EXTREMELY controlling, and still tries to be to this day. He is an LPN, and we just finished the rest of schooling and graduated as RN's. You have to pass national boards to get your license, and you get 4 chances. I passed, he did not. He is a bad test taker so it wasnt all that suprising. But he is a great nurse and has worked as an LPN for 2 years. He hates his job. He hates having to take care of 30 patients as opposed to 5 in a hospital (in our area hospitals dont hire LPNs, just RNs) He has been bummed the last month since he failed the test. He said he screwed everything up, he could have been out of this present job by now if he had just "not been stupid and passed". He says things like "All Ill ever be is an LPN that means nothing". He will go from being fine to saying frightening things.

One Example:

We went out to eat with our friends. He was acting kind of out of it all day, but dinner went fine. On the way we were talking about Aliens (weird) and then I asked if he truly beleived in God, he said he was not sure.

4 hours later we are driving home and he starts going insane. He says "If it were 100 years ago, I wouldnt even be alive, thats how pathetic and useless as a human being I am" and I said "Why do you say that?" He said: "The DIabetes would have killed me back then right away, and if It didnt I would have just killed myself because of all the bad thoughts I have" I told hjim he was being unreasonable and he said "No one would care if I was dead, I mean nothing to anybody" then I got mad and started yelling at him for that non sense and he got very irritable and yelled "You asked If I beleived in God. Yes I do, BECAUSE HE HATES ME!" and started grabbing his face and crying saying he wish he could just think normally like everyone else. He says his thoughts race and he can never pay attention because hes thinking about other things, 90% of the time they are pessimistic things.

He thinks He's Bipolar, and I think so too. But many places talk about Bipolar being excessive spenders (he says buying things make him happy, small things, but afterwords he feels guilt) He has never bought something without asking advice on if it makes sense/ we can afford it. He also has held down a job since graduating 2 years ago. He keeps his composure at work and has never had to leave because of it. He also has been offered promotions on numerious occasions (he declined, because he always knew his plan was to go back to school, which he did)

Please someone tell me if this is typical bipolar behavior