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How can you win back your girlfriend after a breakup? You can make an effort to win her back, but you can't make her love you. Be prepared to accept that your relationship is over, then trust God to bring along someone who's best for you.
How can you bring the spark back into your marriage? The best way is to learn to speak your spouse's love language, and do it consistently.
It's very discouraging when your in-laws don't think you're good enough for their daughter. The best approach is to focus on being the person your wife needs you to be. Perhaps in the future, your in-laws may change their minds about you.
Anger between families members is not uncommon. Don't let it fester. Instead, ask the person with whom you're angry if it's a good time to talk. Get it out in the open, and agree to find a solution to the problem in an agreeable and positive way.
We find it easy to point out the negative areas in others, but struggle to point out any of our own. The Bible instructs us to remove the log in our own eye before trying to remove the speck in someone else's eye.