Judging by how his voice changed and his admitting of doing molly. To some extent the drugs made him gayer.
Nick was partly always like this. Just look back at his very first streams.
What happened was that:
A: He blew up giving him more money and attention than was good for him, exacerbating his narc tendencies.
B: Most of his kids became older. You often see this in couples. Kids aren’t toddlers anymore, wife and husband go “wtf now”, mind and heart starts wandering, they get divorced after 7 or 8 years together.
In Nick’s and his wife’s case, rather than sleep around (small town Minnesota after all) they started to go to swinger parties, do drugs, and have degenerate sex.
It’s notable how so many people who know Nick IRL, mention that he/they took them to a sex shop. They were so mired in boomer tier sexual degeneracy that they preached it like the gospel and possibly tried to recruit fuck buddies.
(First it’s: “Hey, wouldn’t it be funny if we went to a sex shop?” It’s not weird or anything!”
And then once there: “Oh yeah, you should try this thing! We tried it! It’s fun! I’ll buy it for you, don’t worry it’s just for a laugh!”
And then soon after they get the hot-tub invite or: “Wouldn’t it be fun to go to a swinger party? Haven’t you always wondered what kind of people go there?”)