How big is my "bigger" heart?

When things keep repeating and its like hurting everyone involved, just dunno how long I can say the sentence.."I will accept this with a bigger heart". How big is that bigger heart that I have decided to have since that day to remember? Life is full of ups and downs that even human aren't able to conquer their own emotion and thinking, sometimes need to burst to people surround them, and only those who care will stay behind. Trying very hard sometime to withstand these pain feel eventhough I can just walk away and stay alone quietly and lonely. However, it's someone u have decided to love, then u have to love them till the end. The heart just have to choose either to keep going or give up....