A good relationship is not characterized by the absence of quarrels, arguments, and fights but by the way, the couple deals with them.

1. Dealing with communication problems

Pay Attention: When you are talking to each other make eye contact and take your time to listen to each other. Don't multitask.
Respect your Partner: Allow your partner to finish their sentence, to make their point. And respect that others have a different opinion. Consult your partner for their opinion. Most relationships fail due to a loss of attraction. And for many people, especially the ones who call themselves a sapiophile, want deep and smart conversations, and not just someone idiotic who doesn't know how to listen. Listening is as important as speaking.

2. Dealing with Sexual Problems

Take your Time: Take it easy, use some foreplay to get in the mood. Use foreplay to explore each other's bodies and to get the other aroused. Foreplay can easily take up to one hour.
Make Time: Sex and being intimate is very important in a relationship. Plan your romantic night, and make something out of it. By planning sex you will anticipate it as well. And don't forget, there's always time for a quickie. Don't know to turn on your boyfriend or girlfriend. You can check out this post on how to turn a guy on.

Stick to a Budget: Check your supermarket for local discount products. And make long-term and short-term goals, and calculate the amount of money you need for each goal.
Be Transparent: Be honest and transparent about your income, your debts, and about the prospective future. Let your partner know about your desired purchases.

Stop Postponing: Doing home chores won't take much of your time. It takes away frustration and annoyance.
Lower your Expectations: People expect their partners to clean up, to vacuum or to do groceries, but often do not oversee his/her busy schedule. A schedule makes it easier for both you.

Stick to your Promise: Only promise something that you can actually do. If you can't keep a promise, then immediately inform your partner about it.
Let the Past be the Past: Do not project previous relationship trust issues in your current relationship. Don't shy away from talking about your trust issues with your partner.

Take the Blame: By taking the blame, you don't focus on who wins the discussion, but on how to solve that particular issue. Taking the blame is more mature than denying your part in it.
Use a Mirror: Analyse your own behavior and listen to your partner's observations of you. You are as much responsible for a conflict as much your partner is.