Abrupt shift from focusing on love to focusing on career

For the past several years, I was obsessed with romance and finding the right guy, even during the entire duration of my PhD program. All of a sudden, in late September and at age 33, I now find exclusive pleasure in focusing on career and making money. It's not that love doesn't interest me, but I no longer obsess about it like I used to.

Has something shifted astrologically?

I am Libra sun, merc, venus, saturn, and pluto.
Sag moon, mars, neptune, uranus

Virgo ascendant.

It's called growing up.

I think most people do this when they hit their 30s. They realize what really matters to them in life and that doesn't always include being obsessed with finding a partner.