We were two different people living our own worlds. Neither of us knowing we both existed. Each of us could've cared less for each other by all means. But it's funny how we found ourselves in each other's arms.
You have no idea who Klaus Mikaelson is to you. You have no idea who any of the Mikaelsons are to you, for that matter. Thing is, they seem to know you. If what they're saying is true, how are you going to get your apparently missing memories back?