Hindsight is 20/20... especially during divorce proceedings.
Divorced people encouraged everyone to learn from their mistakes when they answered a Reddit question asking, "what red flag did you ignore before you got married?" There are signs both obvious and subtle. If you're already seeing divorce as an option on your wedding day...don't have a wedding day.
The day of my wedding, my friends asked me how I was feeling, and I said, 'Well, I can always get divorced.' Don't settle — marry someone you really, truly love and can see yourself spending the rest of your life with. I'm remarried now, and it made the world of difference."
I would get super depressed when I knew he was going to be home from work soon, but I just brushed it off as being antisocial or independent. But now, I'm with someone who I'm still excited to see every single day after seven years."