This is a two part question. I should mention first that we're not super close friends. I probably see her only about once or twice a year, and we may exchange a few short e-mails in between.
1. My friend is getting married on August 23 (our wedding is Sept 20). Will we be crazy busy in the last month before our wedding? Ie, should we plan to attend? Her wedding is in a different city (it's only a 3 hour drive, but both of our parents live in that city so it's likely we'd stay the whole weekend if we went). We have 100 guests and we have a LOT of DIY (no DJ so we're making our own playlists, centerpieces, fresh flowers bouquets, cake, decorations, etc).
2. We aren't planning on inviting them to our wedding. Inviting them in return isn't really possible because then we would have to invite that whole group of friends from that other city. The couple that invited us to their wedding aren't even our closest friends from that other group! Do we say something???