Her current bf is almost certainly retired military, Marine Corps would be my guess. Initially, my quasi-optimistic reaction to that was "maybe he also has PTSD, and maybe that's good for both of them, and they're helping manage each other's symptoms and keeping each other away from the darkness."
But some of what I've seen lately, the Pokemon cards in particular, has me feeling more cynical. For anyone unaware, "Pokemon cards" no longer means "Pokemon cards" in the year of our lord 2026. Substitute in "lottery tickets" and you've mostly got the gist, but even that elides a very specific trend that has captivated the lowest quintile of the most financially illiterate Americans (mostly young men), a thread that runs through crypto, NFTs, daily fantasy/sports betting/prediction markets, and collectibles like TCGs (Magic, Pokemon, etc), sports cards, funko pops and so on.
When someone like Ava, who has never shown the slightest bit of interest in any of the above, starts ripping packs out of nowhere, it's hard not to assume somebody else's delusions are influencing those choices.