Remember timing is everything... there's a time to talk and finding just the right time to talk WITH one's spouse can be a challenge... When my husband ignores me (especially during commercials) he answers me with a sarcastic/ mean short answer... I just ignore him back, no eye contact, he can get his own dinner... and I sleep next to him nude but he can't touch or bother me... "cause I'm busy sleeping"... and by morning he knows what he did and I tell him, today is another day to get it right? I find men to think about sex so often my method is very successful. btw happily married for 15 years now and he's learned over the years to listen when I speak... (he once missed an interview because he was ignoring me) If communication is the key to a happy marriage... then finding the time to share your feelings together is very important... and always remember to listen too (no one likes to be spoken down to) you should talk WITH each other, not AT each other... my ex husband never learned this, that's why he's my ex.
Make sure that the person is really ignoring you. Perhaps they are hard of hearing. The best way to solve that is to get in front of them so they can see you. Ask if they heard you and wait for the response. If they say they didn't repeat the question or the comment over. If they choose to ignore you, at least you know they heard you! Walk away and be happy with that.