Awesome updates!!! Congrats. Your wife setup time to go meet another man without you + spent a considerable amount of time talking to him about personal life and sex. You're well on your way to being a cuckold.
One thing to consider regarding the bathroom project - stop focusing on next steps and the timeline (purchasing stuff, etc). She may intentionally want to start dragging it out just as an excuse to spend more and more time with him out of the house. If you get into the nuts and bolts of the project too quickly it may cost lots of extra opportunities for the two of them to shop, meet for lunch, etc to discuss the project. Ideally the bathroom just becomes the catalyst that starts the relationship and he never has to go through with actually doing the work. Or, at the very least it is able to drag out long enough so that she is ready to start having a physical relationship by the time materials arrive.
One thing to consider regarding the bathroom project - stop focusing on next steps and the timeline (purchasing stuff, etc). She may intentionally want to start dragging it out just as an excuse to spend more and more time with him out of the house. If you get into the nuts and bolts of the project too quickly it may cost lots of extra opportunities for the two of them to shop, meet for lunch, etc to discuss the project. Ideally the bathroom just becomes the catalyst that starts the relationship and he never has to go through with actually doing the work. Or, at the very least it is able to drag out long enough so that she is ready to start having a physical relationship by the time materials arrive.