Lisabeth was afraid. Kip would've been concerned if she wasn't. It made too much sense. Kip themself would die of old age one day, but Lisabeth wouldn't. If she died, it would come in the form of violence.
But it was probably best to keep that information to themself. Lisabeth was already dreading her immortality enough; Kip didn't want to make it worse.
They allowed a soft smile to appear on their lips though. "You're going to see the best your world has to offer," she pointed out gently. "I can't say that you will have an easy life or that the world will always be kind to you, but... humanity is going to grow. They will improve, and when you least expect it, the future will come through for you. Not all of it will be so doom and gloom." Those times would certainly exist. Both World Wars would be harrowing, and depending on where Lisabeth ended up and when -- Kip knew she'd go to a couple different places, but it wasn't like she had her friend's whole timeline memorized -- she might find herself in some dangerous situations. But Kip had already said that her life wouldn't be a tragedy, and they meant it.
Lisabeth still seemed pessimistic, but hopefully that would wane. The woman Kip knew in the future wasn't this fatalistic, so they had hope.
Something was still on her mind though. The Watchkeeper had seen her friend dig her nails into various surfaces like that throughout their time together, and they knew what it meant. It seemed like Lisabeth wanted to ignore it, considering she tried to brush off Kip, citing some made-up excuse that they probably had more important things to be doing, but the brunette shook her head. "I'm right where I need to be," she replied simply. "And if I had to guess, you're still mulling something over." Kip's eyes flicked downwards to Lisabeth's fingertips on her mug and shrugged slightly. "You can ask anything you want. Can't guarantee I'll be able to answer, but you can always ask."
Kip knew she was walking a fine line here. The Watchkeepers weren't supposed to reveal anything about the future to their Earth's inhabitants, and they had already toed that line more than most of her colleagues would be comfortable with. But this was Lisabeth for time's sake. This woman was special, both here on Earth-243 and in Kip's heart. They wouldn't dream of breaking the rules, but maybe they could bend them a little more to reassure a friend.