No. Sometimes people get back together out of habit or fear of being alone. For example, a couple might get back together even though the issues that caused the break - up in the first place still exist. This can lead to more unhappiness and a cycle of breaking up and getting back together.
Not always. There are cases where getting back together is a bad idea. If one person has changed for the worse, like becoming more controlling or abusive, getting back together can be dangerous. For instance, a girl got back with her ex - boyfriend who had developed a drinking problem during their break. It ended up being a very negative situation for her.
Definitely not. Some stories of getting back together can be quite negative. There could be external pressures like family or financial reasons that force a couple to get back together. But if they don't really love each other anymore, it will be a difficult and unhappy relationship. A couple who broke up because they lost their passion for each other got back together due to family expectations, but they were constantly at odds and not really happy.