Wife away every night with friends

I loaned a large sum of money for my wife to pursue a business venture. The business venture is not going as well as hoped and is causing tension. She is working long hours (including weekends) then after the shift finishes she will go out with friends then come home late (I am normally asleep). I hardly see her unless I go to her place of work which is not ideal. I have confronted her and she says she is avoiding me as we always argue. She is not happy for me to chase her and says I treat her like i'm her father a lot of the time. She's also said the spark has gone out of our relationship. I've agreed to change by doing the following.... I've agreed a process for me to raise concerns which includes agreeing a time/date to speak about things so I will not be arguing with her when she comes home or at inappropriate times. I've started helping out in the business so I can spend time with her and show her how fun I am to start to win her back. I've arranged for regular days out with her to try and spend time together having fun. She is still out with friends every night despite saying she will come home. Is there anything else I can do to make her want to come home.... What more can I do?? Help please

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