Situation worsening

[LBSinTX]

W is staying in the house and paying the mortgage and bills. She texted me yesterday saying that the drain pan for the AC was leaking and asked me what she needed to do. This has been a problem that crops up from time to time because of the age of the AC. I gave her some advice. I did not offer to come take care of it because she acts so independent about things. She texts me again this morning with pictures of things in the attic that I left unfinished and really just seemed to be pointing out how irresponsible I am. She told me that a friend came by to help her fix the issue last night and that she was going to do some additional work to complete it. Not sure if "friend" is an OM or... Anyway, she's never seen me as attentive or responsible in such areas and she has some valid points but it just seems that she continues to get more and more bitter about all things with me and treats me with disdain. I've pretty well gone dark but when we have to interact about any business she borders on hostility. We can make small talk and things are happy but when it turns to anything real I get daggers. It's unclear to me how I'll ever be able to demonstrate to her that I've changed. It's only been 3 weeks since the physical separation began. Is this a situation that will get worse before it gets better? Patience has never been my strong point. What should I do in this situation??? Please help.