How do you say in English sind wir durch viel die letzten tage aber rest versichert gewesen dab itch die beste frau zu ihnen sein werde und sie wissen wievel ich liebe sie wirklich?

Answer 1

These are German words but they make very little sense like this and whoever wrote this probably has very little understanding of German (or used an online translator). The sentence is completely devoid of grammar, lacking case, gender or person inflections. It is possibly written in the wrong style (formal instead of informal, modern informal instead of old informal).

sind wir durch viel die lesten tage

A verb is missing, my guess is that it means "we went through a lot during the last few days", in actual German this would be "wir haben in den letzten Tagen viel durchgemacht".

aber rest versichert gewesen dab itch die beste frau zu ihnen sein werde

Again, it's just a guess but it could mean "be assured that I will be the best of wives to you", in actual German it should be "glaub mir, ich werde dir die beste Ehefrau sein".

und sie wissen wievel ich liebe sie wirklich

"and know, how much I really love you", in German "und wisse, wie sehr ich dich liebe".

Thinking about it, the informal style is probably the wrong choice and it should be written using the outdated informal style in 2nd person plural.

It could also be:

Seid nach den Ereignissen der letzten Tage versichert, dass ich Euch die beste Ehefrau sein werde und wisset, dass ich Euch wirklich liebe.

This sounds more like something from a play, an arranged betrothal in the 18th century or something, and means "The events of the last days should leave you assured that I will be the best of wives to you. You should know, that I really do love you".