Sell the house or keep it alone in case of a theoretical divorce?

That is just the last straw. He did try.

Even though I find his behavior inglorious, I have deliberately refrained from this harsh wording. In my impression, his focus is primarily on the seaworthiness of his lifeboat.

She is cheating on him. Did you overlook that? It’s not rough seas, she capsized the ship.

The ship may have been damaged on her side. The terms "cheating" as well as "rival" regarding the therapy fellow student would not even remotely occur to me (I did civil service in a therapeutic clinic).

Thank you very much for all the contributions.

I used yesterday and also today again to reflect. I have to agree with you. The thing is over, no matter how hard it is. I don’t want to be treated like that and I don’t have to be.

Therefore, I have decided to get a last-minute appointment for legal advice tomorrow and secured first documents today.

Even though the words were sometimes harsh, they were right to simply open my eyes.

Thank you, and especially the long post from Aruki described it very well.

Looking for blame is nonsense.

You are absolutely right; however, I have not read this from anyone here. But one can come to the attitude that a behavior is extremely mean that @Jürgen456 should take care of himself, without hatred or greed towards his wife; simply straightforward and clear. @Jürgen456 that sounds good, even though the background is of course sad for you because this dream has burst. You are 36 years young and therefore all options are still ahead of you, even if you cannot see them yet.

Regarding other items: We have now been married for 1 year by civil law and have a marriage contract that excludes inheritance matters from the accrued gains for both parties.

Inheritance is also, even in a community of accrued gains, what everyone has by default without a contract, not accrued gains. Only the increase in value counts as accrued gains, which is not much after 1 year of marriage.

Make sure to get legal advice, even if it costs something, before you make a wrong step.

In a divorce, he will need a lawyer anyway. A joint lawyer or legal assistant is no longer possible.

Joint lawyer or legal officer is no longer possible.

Since when? That’s new to me.

Since when? That's new to me.

It is still the case. Lawyer requirement for divorce: yes. Joint lawyer: kind of. A lawyer must file the divorce. The second party must then agree. Then there is only one lawyer, but not a joint one - he advises exclusively the party who hired him. And only this party has to pay him. So at least a cost-sharing agreement should be arranged. And of course everything must proceed amicably and without open issues, because otherwise having only one lawyer makes no sense.