<human>: Can you succinctly summarize the text in 1-3 sentences?

Okay, I'll try to be as concise as possible.
 I've been friends with this person for a few years now and I've seen the way that this person tends to reject her other friends while in a relationship. I've stood by, however, dismissing it as a personality flaw. 

Now that she's engaged optimistic that way after the wedding she'll be a better friend to me and she won't constantly ditching me for a guy.

 Also, her fiance is a mutual friend of me and my SO. This also means that she's unavoidable and our social group if I chose to stop being friends with her.

My its biggest concerns are that she never makes plans for us to hang out unless its something to do with her boyfriend / fiance, or someone else organized it and we both happen to be there.

Also she is very affectionate and talked about how we are best friends all the time and how she loves me, yet when I say that I miss her and that we should make plans she never makes any sort of response to that.

She also makes no efforts to keep in touch. 

I don't really know if I'm overreacting here or just being overly sensitive but I feel as if I'm only her friend when it's convenient to to her . But right now I don't know if I want to spend the next year supporting her during wedding activities, only to be left behind again.
<bot>: Friend's getting married, I'm in the wedding. feeling like I'm only there for her when it suites her.