An emotionally distant partner can be frustrating, which is why it is important to keep the communication flowing. When the talking and sharing stops, an invisible wall goes up, which can lead to some very unhappy endings.
When it comes to long distance relationships, these can certainly work, usually if there is an end goal in sight (knowing that eventually you will be living in the same city!). If you are entering into a LDR and you happen to be jealous or insecure, then you are in for a tough road ahead. It’s best to really consider whether you can handle these types of challenges — or not.