How do I deal with a spoiled girlfriend?

ColdSilver
I've been in a relationship for 1.5 years with this girl and I slowly started to see that she doesn't react well when we have different opinions about things.
She is not rich or anything, in fact, she works since she was 16 yo. However, every time I say something "unpleasant" to her she gets mad.
So now she wants me to be cool with her hanging out with guys she had sex with in the past and said that they will be invited to our wedding and stuff. Besides that, she not only wants to keep those friends as her best friends but she wants me to be friends with them too.
I said that it'll not be possible and she got mad saying that I am being jealous and she cannot play jealousy. The truth is that I am jealous of her sometimes and I tell her when it happens and why is it happening, I don't scream or fight about it... I just tell her what I am feeling because human beings have feelings, right?
I just would like to know what is the best approach to talking to her in a way that will make her realise what I feel about all this and that it is ok to have different opinions and vision, but she needs to respect me and stop looking for a fight whenever I don't say she is right.
How do I deal with a spoiled girlfriend?
3 Opinion