Left On Read

When your friend, Eiran, left the country to go on a family trip for about three months, you weren't upset that he wasn't responding because, obviously, he didn't have service. But now he's been back for two weeks and hasn't responded to a single message you sent, and even left you on read?!
Now you're on your way to a party his family is hosting with your parents. And so help you, if you see him there, you are going to confront him. You want to know if you did something that might've made him uncomfortable or hurt his feelings.
Or, worst case scenario, he found out you have a crush on him...