I mean, I don't want to watch one of "my" LIs getting it on with another guy, especially once I've been with her--not my kink. I don't want to know that it's happened over a short timeframe (I'm with her Monday, he's with her off-screen Tuesday, I'm with her Wednesday). But at the absolute best, it's going to be ambiguous whether Scarlett was with someone else between 1999 and 2019 (maybe we see MC come back in 2000, making it possible he's the twins' father; maybe we're told it happens but we don't see it; maybe it's left completely unstated, allowing those who want to believe it to do so), and it's entirely possible we'll know the twins' father is someone else. But if I'm gone for that 20 years, eh, not a big deal for me.
Definitely. She's not pushing the "friends-to-lovers" button for me (the way Annie in Eternum does, for example), but she's a hell of a lot of fun.