Is this bad? does he think i'm a betch?

so me and my ex, we both rllly like eahc other, but have too many differences, so we're kinda like friends with benefits you can say? so I was texting him earlier, it was all good untill I said " ahaha, ppl put kids on leashes, thats genious" and hes like " wtf no" and i'm like " yeah" and hes like " ya uhmm ttyl" so, hes on msn now, should I greet him? or do you think hes pissed at me for saying kids should be on leashes?