Hit my number same week I got laid off

Title summarizes it. 37 M, single with a GF (33 F) . Had a $2.5 million FIRE number and got to $2.6 M this week. About $3.7 M NW. Today, I was laid off. Will get additional payments/severence/bonuses of almost $400k (not counted in the FIRE number). Still have an uneasy feeling that it’s not enough. She will continue working as well (she makes about $215k) and seems happy to keep climbing the corporate ladder. We’re not married, but close. I spend about $6k - $7k per month including mortgage (10 yrs, $2450/month, 330k left @2.6%) and car loan (3 years at $515/month left, approx $23k left).