Rihanna and A$AP Rocky are reportedly very serious of their relationship and are in it for the long  haul. A source told People, “This romance evolved since they were friends first. They already knew and respected each other and it has just grown from there… They loved to laugh and have a blast together before they even dated. All of that makes for a solid romance now.” 

Another source said, “They are crazy about each other [and together] for the long term.”