First of all, welcome to our community. Second of all, congrats on 5 weeks sober and on having the courage to change, even though your wife is used to the way you were. For most guys, the wife is usually
a reason for them to change, because they are afraid of their wive's finding out - or because she found out already. In your case, she's actually holding you back, so that takes
a lot of strength. May I ask, where did you get the strength to make these changes in your life?
See
this page. Although it was written for a man, you might try and explain this to your wife, i.e. that if lust is the focus, it will fade away eventually. Instead, marital relations should be a time of emotional closeness, not of lust.
There are many, many levels of purity a Jew should ultimately strive for. We find in the Gemara the idea of having relations "as if forced by a demon". But this is only if the wife is on the same level as the man in this regard. Otherwise, one is responsible to please his wife.
When your wife is ready, you may want to work together with her on higher levels of purity and fulfill all of the holy advice of our sages in regard to relations. You can see
www.jewishsexuality.com for a lot of questions, answers and advice in this area.
You may have to ask advice of a proper Halachic authority to determine what to do if
you are seeking higher levels of purity and
she continues to desire behaviors that are frowned upon by our Sages.
May Hashem be with you!