Was I right to be mad?

I have been friends with a girl since we were in 11th grade in high school, so about 7 years now. Now we are in our early 20’s and still friends, we work in the same building and have lunch together every day. Almost 2 years ago her boyfriend decided to propose and she accepted, then about 6 months ago, one night full of drunken debauchery, she asked me to be a bridesmaid. I was the first person she asked and I felt honored, even though we were both pretty drunk at the time. She discusses the wedding details with me everyday at lunch, sends me emails with pictures asking me for my opinion, and even discusses her grievances on different things for the wedding. One of those grievances is the fact that her fiancé doesn’t have enough friends for her to put everyone that she wants, as a bridesmaid, in the wedding. As a good friend I offered to step down to save her some grief never thinking that she would accept the offer, since I’ve always been a really good friend to her, and as I expected she didn’t. A few weeks later she sent me an email asking me to step down, since I had already offered, so that she could put another friend of hers (whom she's known for a great deal longer than me, but hasn't been around a lot since we met in 11th grade) in my place, so that she wouldn’t hurt her feelings. I agreed, as it is her wedding, but was still very hurt by it, and she has since admitted that, though she considers me a really good friend, she was very drunk when she asked me and that she jumped the gun and shouldn’t have asked and that it all came down to length of time known. Now looking back at our friendship throughout the years, I feel like everything has been one sided, I feel like a friend of convenience to her. Every time I call to hang out she won’t commit to any plans with me, or will go out with other friends and not invite me. It just feels like she only calls on me when no one else is available. I told my boyfriend, of 5 months whom she introduced me to (he worked with and is friends with her fiancé), about how hurt I was by all of this and now he doesn’t even want to go to the wedding. Anytime I bring up her wedding, which is in October, he will automatically say, “We’re not going.” I just want to know if I was right to be upset with her, and is my boyfriend right in not wanting to go to the wedding? As a friend I still feel the obligation to go, but in the back of my head I feel like my boyfriend is right and that I shouldn’t want to go.

Is this right?