Is this an authentic message from Google saying your account has been breached?
If so, don't fret. Just change the password, and any other accounts you may have that use the same password (... I hope you don't use the same one anywhere else, right???? )
Hackers are overrated, don't worry spouse. Just keep going on your merry way and just change your password. You should be safe.
Note: Try to keep it over 15 characters, if you use Windows. And then for online use, just keeping it above 10, and follow the uppercase, lowercase, number, and symbol method, you should be okay. Its very hard to brute force passwords over 8 characters in length due to time and memory of computers today. I work in the security industry so I see what hackers do all the time.