To suggest that all relationships lead to a healthier life for both parties would be going too far. There are also toxic relationships, which can destroy the individuals who enter them. Also, you may find yourself in a state of bliss for the first few months or even years, but once you find yourself in a conflict zone, everything falls apart.
Finding the right partner
This is why it's so important to understand the level of commitment the other person is willing to place on the relationship. This is the only thing that can help you predict how it will go, when difficulties arise, on the couple's path. You also have more details and knowledge on the subject in your readings.
You can't force commitment. If it doesn't come naturally, it probably means there is something you are not comfortable with about the other person. Maybe it will fade with time, but if it doesn't, you shouldn't force the relationship to continue.
Trust is a core value of a strong couple, and if it's not there, you're probably better off alone until you find the right partner for you. While the other doesn't have to do things the way you would, if you find yourself compromising all the time, end it as soon as possible. Otherwise, you'll always feel dissatisfied, and that will turn into bitterness, and possibly anger
Being happy in the home
Fulfillment comes through complicity. Companionship means that you think alike on most subjects. This is the ideal basis to start building a common world, that's what a couple is. Sharing what both have to offer creates a much more complete environment.
Just remember that whatever you bring to a couple, you should not expect the other to give it back to you, in a gesture of return. Great couples bring what they have to the table, freely and willingly. There will always be one who brings more than the other. This is only natural. After all, it will be the same monetary level, because people rarely have exactly the same salaries
If you still doubt that being in a relationship is better than being single, know this statistic: those who live in a healthy relationship generally live longer than those who do not.
In fact, in a French study, results showed that couples between the ages of 40 and 50 had a mortality rate two to three times lower than that of singles. Some food for thought...