<human>: Can you summarize the given text in a few sentences?

Hello Reddit! Using throwaway, because you never know. 

He is 28 m, Me 27 f = Relationship length ~8 months

I'm generally a very positive person and happy, most of the time. That's not to say that I don't get annoyed and bitchy myself. Still, I generally have a positive disposition when completing tasks/chores and always try to do my best. I have even been very vocal about how much I dislike negative attitudes, this includes whining and bitching. The way I see it is this, if you don't like to do something, don't do it.

Well this past weekend he came over to hang out with my family and myself, and my family was basically doing chores on Sunday, so he was asked to join. (Not forced, just strongly hinted) He started working and joking, but as the activity went on he seemed to get really flustered, so I switched from silence to expressing my gratitude and offering to do something fun after instead, which seemed to help, but I know my family noticed and felt guilty for even suggesting that he help. 

The next morning he again became flustered when he was making coffee, I know that there is a science to make it look nice, but the way I see it, is who cares?! As long as it tastes good. Then as the day progressed I noticed that his facebook posts throughout the day (he only goes on about once or twice a week) were basically a bitch fest. I kindly pointed out that this is not attractive to potential employers so he shouldn't be so public about this, but he just said "Ok, I'll change it later."

I've never really said this isn't attractive to me. How can I say that without insulting him or sounding bitchy myself?

I would appreciate your help!
<bot>: Boyfriend keeps bitching about everything that has gone on for the last couple of days and I find this really unattractive. Need help figuring out how to bring this up