history: I recently lost some weight and I feel more confident in a bathing suit. I lost a little bit of weight recently and last week I felt more confident in a bathing suit. That's great! How much did you lose? 20 pounds so far.
current: Wow that's fantastic! i wish i had that kind of will power
next: It becomes a habit once you get used to it. I can't wait to go to the gym now!