Also, they are one of the easiest types to "get back". They are nicknamed "the Golden Retriever" because like the happy, sweet dog, they will put up with a lot of "abuse" and will be very forgiving once they are treated well again. You can't be mad or threatening or they will cower and slink away with their tails between their legs, giving you the sad look.lol.
Your personality can handle much more conflict than this one--you don't realize that it's "abuse". You must become more sensitive to what he goes through--support his hobbies (well, to a point) and help him "relax". He is the one that will be better than you with your sick child. He has a LOT of patience. He is very forgiving.