How would you react

So me and my boyfriend have 2 kids together I’m pregnant with our second baby. Well lately he’s been kinda bringing up marriage lol and then yesterday he got home from work and our 2 year old daughter ran up to him while I was on the couch and he said “give me a kiss wife” and he said that came out wrong lol. I was kinda shocked he said that. 😅 I didn’t know what to say but I did give a kiss haha.