Rabbit doesn't like me after I came back from a 5-day trip Hi,

I have just come back from a 5-day trip, during which I left my dwarf rabbit of more than 3 months with my friend and she said that he seemed happy during that time. But now that I came back and took him home he has a different attitude towards me: he doesn't follow me, he doesn't come to me when called for ,and in general, he doesn't seem to like being around me anymore. All of this really hurts me, I was expecting to return to my loving bunny, but instead, I feel like I was replaced by my friend or something like that.

btw. for some reason one of his ears is drooping now

Is this normal, what should I do?