Hard to find, difficult to stay & easy to go

Today, heard from my bro's ex-girlfriend that they broke up officially after six years together. They had been through a lot, from sickness, objection (from the girl's family) etc yet they cannot make it through for the rest of their lives. Suddenly, I am feeling very sad now. I like my bro's current ex-girlfriend alot, she is the best, out of all his past relationship!! To me, it is super hard (harder than end of the world tomorrow) to find someone I like and he likes me back so I always find it a pity that the final destination of a relationship is to go separate way. Word of the day: Sad~~T_T