"I lost you once, I'm not losing you again."
- oh dear, was i in love with you.

"I just got you back, I'm not losing you again."
- I just kept repeating those words in my head, clearing the selfish thoughts.

"But it's all too late, I lost you twice now."
- Second chance is already used but you didn't make it good.

"I lost you twice, I'm not trying to get you back."
- I gave you another chance, you threw it just like a trash. Does the word "love" reminds you to anything in our past?