Sorry you are going through this. I know it's hard.
The first thing you need to do is to see a doctor about depression. You would most likely benefit from some antidepressants for a while. They would help you deal with the situation as right now you are in a depressive state and avoiding your problems.
Why did you allow him to kick you out of your own home? By you just accepting him kicking you out, you are helping him stay in the affair. He now has the house and the OW. What did he lose? Nothing. He has not even lost you because you are just sitting around waiting for him come back to you. Lucky him. He has the house, a younger woman and you as his backup plan.
Your husband has to suffer the pain have facing the read world over his affair and the bad way he is treating you.
If you want to get your husband back you need to not let him walk all over you.
First off you need to get back into your home to live here. It is still your legal residence. So when he's at work, either go break into a window and change the locks. (or call a lock smith have the lock smith change the locks. You will need to prove to the lock smith that it's your legal residence. Just get some of your mail and your driver's license with that address on it.) When he gets home, give him a new key. And tell him that if wants to have an affair, he is the one who needs to leave.
If he gives our grief, or tries to kick you out again, dial 911. The police will come and tell him to cut it out.
Is this other woman married?
Thank you @EleGirl
for your very insightful post.
Sorry QM that your marriage is yet another casualty of infidelity. Your long term marriage is now gone, and your WS killed it in the worst way. He is done with you. You need to be done with him too.
See a lawyer, continue counseling for just you, get back in your home ASAP.
Hopefully you are on medication by now because you are going to need it. Your WS is among the few that are just to abominable to even think they are the same loving spouse you lived with for 25 years. He is not that man. That loving husband has been replaced by this terrible cheater that doesn't care about you. He is too consumed with himself. Very selfish and very destructive new him.
The guilt you think he feels is a lie. How can he feel guilt when it is not him that is suffering living away from his home, dumped, replaced, and thrown away like yesterdays trash?
If he felt guilty, he would not have you thrown out and wanting you to move on. He wants you to be happy so that he doesn't look like the bad guy he knows deep down that he is.
Expose him and expose the OW. Let everyone know what type of scum he has now become together with a lowlife OW who comes between a couple married for 25 years! She is way below your standards which is why she is with him now.
What honorable man throws his wife of 25 years to the curb and locks her out of her own home? No one will see it as OK either. You need that kind of exposure to get help in him seeing that there are consequences to his underhanded actions. He has betrayed you and treated you terribly through no fault of your own. Seek compensation through monetary means. What he did has no price that he can ever pay. He is a terrible person for you right now and probably for ever.
Toxic people need to be as far away as possible from the people their toxicity harms terribly. That is what he is to you now.
I'm sorry, but the sooner you realize that he is not who he used to be, the sooner you can heal from this terrible blow.
Find that anger that needs to come sooner than later. It will propel you to move forward and find the best life you can live without his dead weight in the picture.
Your loving husband of 25 years is dead, sadly, never to return. Mourn your loss and free yourself of this monster that has replaced him.