For the second story (even if it doesn't end with "what should I do"), you should break off the engagement with him. He clearly doesn't care about you enough to not go through with the best man's plan
If i gave my sister a chance to work even if she didn't qualify for the job and she goes and complains about how much she hates it then yeah i would be mad and if she tells people about something that's supposed to be secret and the only thing she wanted was an apology and her sister didn't even do that
The stories weren’t made up. I too would be upset if my sister was posting about my life on her blog without asking me first, and on on top of that it would be detailed enough for my friends to figure out it’s me. Also, the one who made the blog shouldn’t be complaining about her sister and the job. She isn’t even qualified for a job at her workplace, and yet she still got one with a stable income.