[ Five doesn't say things to please people, not even his family. He's been honestly blunt since they were kids and that only got more accentuated as he grew up without social interaction. If he says he's happy with Vanya, that is the honest truth. ]

My knight in a shiny white suit. [ Five gives her a pleased look and before he steps into the changing room he mutters a quick, Don't go too far.

It's not a request but it still sounds like there's a clear 'just in case' attached to the end of the sentence. The blond lady might just be a shop assistant but Five is still concerned that someone from the Commission will show up one day to fuck up their lives again. Vanya can defend herself better than anyone but old habits die hard and Five would feel better knowing she's around.

Time to try on some clothes then. He starts with the blue suit first, happy go get rid of the terrible sweatpants and slip into something truly comfortable. The size seems right, the jacket framing his waist and the shirt not to tight or too loose but he's not sure about the ties. He tells that much to Vanya when Five pulls away the curtain and steps out so she can give him a good look. ]

...the ones here don't seem good enough. A tie pulls the suited look together and these just don't work. What do you think?