Language kid.
If you get drunk, hook up with another drunk person, and end up pregnant, who exactly is to blame? Your life choices are hardly stellar (nor are theirs); you can argue they should have known better, but so should you.
That ship on that blame has long since sailed. It sailed by the night before when you were both laying your regrets.
Risk now comes from your choices and theirs, and oh my won’t that be fun?
I mean, build on that idea a little further.
Sex is an extreme example, but now consider the cases of opening up a bit; showing emotional vulnerability; taking that first step of trust; telling that special someone you actually do love to play with Lego.
All of these carry the same risks for all involved - the social ramifications of a failed attempt to bond is somewhat higher than in our current “clout hunting” era (remember, clout doesn’t just exist online).
Relationships are complex critters - some are built on risk, some are built on the aversion of such, and some are built upon a complex dance between the two (for what is life but a twistedly beautiful lottery)?