Repetition

My boyfriend, my first boyfriend who I have been dating for two going on three years now, told me a few weeks ago that our sex life was getting repetitive and hasnt wanted to do anything since. We are long distance so I kinda get it because all we can do is have phone sex and sext but... it hurt for him to say that. I dont know why but for some reason the thought of him being bored of something that I hold in a high regard and I think is really special and that I love to do with him even if it's just the same stuff each time really hurt. I dont know what to do about it and I feel like a failure. I just wanted to know if it is normal for that to have hurt me or am I just being an oversensitive snowflake because I'm dramatic and pent up? I haven't said anything to him about it and I probably wont, but I wanted to know if it was just me incase I got the balls to say something.