The biggest challenge in marriage relationship is lose of trust. If trust is losed it becomes a challenge to rebuild it. Insecurities grows in, suspicion, cool fight then everything bond would start to fall apart.
The first step to overcoming challenges in marriage relationship is transparency. Never act alone and if you must, let your partner know. Marriage is a life deal so you must always involve your spouse in every part of your life. Do not hide your fault. Admit and apologize. We all have shortcomings. We all have emotional challenges to deal with, some disabilities here and there, but when there's understanding we can live together in harmony.
Don't wait until you're asked to admit. Do not wait until your spouse suspect or misunderstood you.
Acceptance and genuine respect.
Respect him/her personality, this is where love and trust breed. If you respect each other, humbly and graciously, you give each other the chance to act his/her part in the relationship.
When peace reigns, creativity comes. When creativity reigns challenges can't be felt and even though they come, the creative "mind" understands and kick the problem away at bay.
Here are some quick tips:
Hit your problems on the head. Do not circle around.
Be slow to anger. Deep breathing might help before responding to a negative comment.
Be confident with your partner. This is where sense of humor starts.
Avoid jealousy. Encourage the development of your spouse' skills. Everybody should be allowed pursue his goal despite the need of commitment in the family.
Accept to agree to disagree. Accepting other's opinion despite the differences doesn't mean your disabled or mean. It just mean that you value your relationship more than ego.
Most of all, pray and ask God for wisdom in dealing with challenges in your marriage. Be loyal and value your covenant.
If you don't want the way your wife/husband dress, teach him/her how to, without sinning.
Compliment each other. Appreciate the tiniest improvement. Share love!
Do not protest or debate. Make each other understand: if the problem is minor forgive and forget with love. If it is major, discuss. There's always a way out.