@sakura2503 , It's possible

As we all know JKS's friend tweeted that picture on the day Shin Hye went home from LA.
They just wanna have even a very short quality time to see each other after two weeks apart.
Of course Shin Hye wouldn't share her pic at the beach too or it will become very obvious. Instead, they wanna keep their love relationship private for the time being. So Shin Hye tweeted it after some time.
My pov only but hopefully its true. May they always keep their faith to each other. Lets give our eternal support to this couple. Waiting and waiting for new spazz.
Credits as tagged.Remember that 7th Oct 2013=The Heirs Press Conference=YAB 4th Anniversary. In my opinion thats why Shin Hye looked very happy and excited on that day.