英文高手翻译下,就一句话!

Think at first brief understanding, can make what us walk simply, but detection, the heart would be painful!

Although i thought our brief cognition can let us do not feel that hurtful when we broke up, I finally realize, my heart sinks.

Think transient understanding originally, can let whom we leave clear-cut, but found, in this way the heart will ache!

I thought the brief cognition wuold make a simple part,but now I find it really hurt!

I thought the short relationship would gone easily, however, it did break my heart.