How to treat W who goes out every weekend?

[TooLateForMe]

My W goes out a lot now that she considers us D (not legally, though). She's doing it to feel pretty and wanted by men. I want to show her that I think she IS pretty and that I do want her. Trying to be subtly flirty and expressing my feelings without scaring her off. I don't like that she goes out (without me, anyway!), but want her to feel I'm glad she's enjoying herself. Otherwise, I will be the evil stick in the mud and I'll get nowhere.

Should I just be laissez faire, ignore it and let the whole thing take its course? Should I compliment her, tell her she'll be the prettiest one out there?

Please chime in, I just want to do the right thing. It's just so hard to figure out what that is when my brain is full of a million different emotions.