lol, well, I'M the one who is more like this than what my boyfriend is. He usually tries to point out how things can be turned into good, point out the good points of life, etc..but it doesn't always help me. I mean, does he have any problems going on? I am this way because I suffer from Anxiety and Depression, and I do infact take Prosac! lol. So you know, maybe there is something/s that is really bringing him down?? Anyhow, regardless, if this is bringing you down thenn you need to talk to him. Just say (nicely!)that his attitude to life is brining you down and getting to you, and maybe even ask what you can do to help him out

.
Good luck, hope this helps at leat a bit!