"Right now, this just feels like a stupid game of who can ignore the other person the longest."

^^^^^^THAT^^^^^^ is exactly my life right there!
Unless I text my H, he acts like I don't exist. Tbh, it's been so long, I neither need or want to text him anymore. All the things I would've texted him about in the past, I strive to handle myself.

It feels like a 25 year marriage is dissolving into steam, just evaporating away....

Try and relax, get your work and exercise done and maybe enjoy the space if possible. Your H may miss you, he may find the time alone...lonely. Hopefully he'll allow himself some thinking time.

Me 50 H 48
S 23 S 21 D 19
Together 31 years
Married 25 years
Separated April 2009 Reconciled 2010
Separated September 2017