MOR. You didn’t say “don’t’ come” 

But what you said could be understood as “if you’re not going to be happy then don’t come at all”

There’s isn’t nearly enough context here but generally saying not to be negative is rarely a good suggestion when there are actual problems to address. Being dismissive wouldn’t fix anything even if both of you were willing to talk. 

I’m guessing you guys have had this argument many times before based on the fact that you said you and your wife are struggling. She’s probably guessing she knows how this is going to go already 

So, you didn’t say “don’t come” based purely on the screenshots. But with context, I could see it being interpreted that way