Break Up & Divorce

Husband found out about wife's past only when she took her exes name while intimate with her husband who was a virgin and self controlled?

And on confrontation shebadmitted that she had many sexual partners beforemarriage and hid about it. Now the husband is broken down, feels insecured suddenly, compares himself, considers himself loser, provider, etc. Which is ofcourse normal to happen to a person who was lied by his wife and he found it by the worst way possible, that she took her exes name while intimate with him, as he is in shock that his wife who gave a different presentation about herself is actualyopposite and that too she takes her exes name in front of husband while intimate , bounding the husband to think she is still on for her exes even though she said she did'nt do it intentionally and really wanted to marry him (husband)? So what should the husband do, now? And what should the wife do?
Husband found out about wife's past only when she took her exes name while intimate with her husband who was a virgin and self controlled?
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