Something borrowed

The film with Ginnifer Goodwin and Kate Hudson, 2011. Ginni is Rachel, and Kate is Darcy. Rachel has always been Darcy's best friends since they were kids, and since university she has been in love with Dex, but never told him, and arrived even to "encourage" him to go out with Darcy, and now Dex and Darcy are about to get married.
 Rachel had never told any of them about her feelings, and if Darcy had been a real bitch to take him from her like that without a second thought, she was really stupid to act as if she was happy about it : really stupid. She should have said something to Darcy right away, make things clear between them. Given how things have been, Darcy has every right to be angry at her now, because it is true that Rachel betrayed her, stealing her fiancèe and sleeping with him. Another character is Ethan, and they had been friends for years, and now he keeps on saying that Rachel should do something to make herself happy, he seems to be the only one that actually cares about that; Darcy never seems to care about that.
The actors are okay, and I like Ginnifer Goodwin, but the story... now that I've seen how it ends, I can say that I hate it. I hate this film. Why? Because it goes with the theory that a couple can stay together for long only if one of the two bears everything in silence, and backs up the general opinion that a man and a woman can't be friends, because a straight man looks for other men for friends and for women for sex: different things, never to mix up. Like Ethan, that cares so much about Rachel not because they were friends but because he is in love with her. Or like the Rachel-Darcy couple, that has worked until now only because Rachel never asked for anything and simply did everything that Darcy wanted. I'm talking about the fact that in this film friendship doesn't exists. Is it really true, is it really like this??? Is this our world??? Am I the only one who still believes, or better still hopes that friendship exists, and is important for people??? Especially between women, does friendship exists or not? Two women can be friends without being jelous one of the other? I personally can't thing of one example of a woman happy for another woman's success... that's why this film made me so angry!