Do you agree that both partners should take care of protection? A woman just has to eat in her head, right? Without worrying about morality, for her, the consequences of unprotected sexual intercourse are far more serious and quite tangible purely physically.

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Are you really fucking? In a particular starting situation, the woman was not protected for the reason that she considered these relationships serious and they arranged her, so that she wanted children from her beloved husband/man. If the relationship did not satisfy the man it was worth to say about it and break up in the ideal, well, or at least stretch the ganglion, if the gut is thin, and do not stretch the children because he does not need them.
In general, judging by the number of excuses invented for this, camarader, many men have simply recognized themselves and they invent excuses not for him, but for themselves.