cognitive dissonance

I think the reason why i like "Ruby Sparks" and "500 days of summer" is because both illustrated of the idea : what you perceive and what really happened is sometimes quite far different. People think you are crazy only because they didn't see what you see, didn't feel what you feel, and haven't been through what you've been through. Somehow this idea is way too much more sad than the ending of any of the film. I didn't like them just because it fits the reality. (which in both the relationships didn't end up well) It's the craziness in love from other's eyes may just not as romantic as they thought, but so heart-breaking from certain directions.

So the idea might applied to myself as well. Am i really that sad as i thought? I guess not. But i feel like i should feel sad (for an unknown reason at the moment) and leads to cognitive dissonance right now.