I love my G6. You can adjust the settings for the alarms and at the beginning I had them all set. But it was too many noises. So I only kept the low, urgent low and high settings on. You can adjust the levels or turn off what you don't want, But that sort of defeats the purpose if you turn off all of the alarms, because it really does help with controlling your BG levels or alerting you to a low. So I would advise you not to turn off the low and urgent low, ever ,since you are hypo unaware it could save your life.
I don't know what to do with your partner, that's just a bad attitude. There are a few people that have been on this site with non supportive partners. If he loves you somehow he needs to understand how much this could keep you alive. But if he can't you need to ignore his attitude as it is so important for you especially.