I just wanted to reply to this because I have just been through something very similar with someone who has turned out to be an amazing person (who just wasn't used to classy women, I think). I had to draw several boundaries and we had a few clashes over it, but it has been so worth it. It's not a bad thing to find out how to negotiate differences early on. Sounds like your plumber sensed that it didn't go over well so he reeled it in. That's a good thing.
Stick to your standards and he will either respect it or fall off the radar.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17