future-sister in law getting married same year not getting along.

Just tell her that your offer was sincere, as you know how much work and how stressful wedding planning is, adn that if she doesn't want your help, then you understand. There really isn't much else you can do. So, to be clear, she is mad at you for getting married the same year, or that your announcements were in the paper side by side?

Since you have offered to be helpful there is nothing else you can do. I am in the exact same situation however my wedding is 3 months after my brothers. You just keep offering when you have time if you want to help her.

She is not mad at either the newspaper thing or the being same year. i think she is getting married because we are. i don't know. i just don't know.

Don't let her ruin your wedding planning experience or get you down about your wedding. You keep doing what you have to do. Thats what I have done and she has finally gotten her act together and is now in a better planning place considering her wedding is in July.

Just to play devil's advocate, a good friend of mine got engaged a few months after we did and plans on marrying 3 months before us. She is on full bridal mode and refuses to talk about anything but her wedding finding a way to work it into every discussion. She awkwardly offers me hand me downs from her wedding as well as pushing her vendors on me. The problem is that I'm not asking for help and we don't have similar styles. I think she has the best intentions, but I now avoid conversation with her because I don't want her suggestions.

I'm not saying this is you, but try to see it from her perspective. Since you offered to help and she refused, I would back off and just support her decisions. Also, try to talk to her about non wedding things to build your relationship.