Why Your 1st Marriage Was Your Practice Marriage
Your first marriage ended in divorce?
Start referring to it as your Practice Marriage!
You Left The Romance Phase

Don't be afraid to grow out of the "honeymoon stage" - it's a natural part of growing together as a couple. If your relationship lost some of its initial spark, that's normal! That simply means you need to make time as a couple to do new things together to keep your relationship fresh and exciting. Don't give up on a relationship if it doesn't feel like it felt when you were first dating, but take that as a sign that you need to keep giving 100% to keep your romance-turned-love burning.
You Needed To Get Help

Communication

Unmet Expectations

Do you know what the #1 killer of marriages is? If you said money or sex, you're on the right track, but the answer goes even deeper than these issues! The answer is unmet expectations. This is the "silent killer" of relationships—sometimes neither partner even recognizes that it's there. Don't fall prey to this trap! Make a list of what your expectations are for your partner and then communicate them!
Your partner may have no idea that you expect them to pay attention to you in the morning instead of scrolling through their phones. Sitting down to have an honest conversation about the expectations you have of your partner and asking the expectations that they have of you might just save your relationship before it takes a downhill turn.