To be fair, it would appear to normal people that you pi$$ed him off somehow. What it was is only for you to decide, or perhaps he has different perspectives on how things should be in his world, and you, and others don't simply match that view.

Alternately, he could have been deaf, as in hearing deprived, and he was merely doubly and repeatably, with great enthusiasm, expressing how much he liked you, and was inviting you to an event of which he hoped you would understand what he was trying to say and return the favor by expressing your pleasure in also attending. One never knows for sure, so be kind and give him the benefit of the doubt.