I've never found anything that I like being boring after sometime. Actually, when moments where my feeling about something stop burning so brightly, I found it even more impressive - how can something catch my interest in such intensitivity like that?
I don't believe we really grow tired of things we like, more like your feeling stop burning. I don't know if this makes any sense, but when we find something that we like, every time we interact with it we found a burning feeling of "I want to experience this again", "I want to learn more about it", "I want to burn this in my brain" and such. If we keep doing what we like, we won't really burn out or grow annoyed at it, at least that never happend to me. If we keep on experience we like, we are bound to find even more things to grow more excited about it, be the smallest things, be it big. Just about anything will make your feeling be re-ignited.
There's been many times where I thought I couldn't bear seeing a game in front of me, but when I thought "Why not replay it? For old time sake" I would play the game until finishing it or pass the entire morning, afternoon, night and evening, and when I'm finished (because I would be sleep) I wouldn't leave the game from my mind.
I've come across some people saying passions and things like that are short lived things for only that period, but I think that is a person dependent thing. Some people may get bored of things they like after sometime, but I don't and most people I know also don't. Most of the time, people just shift their focuses from one thing they like to another, which is totally fine. Focusing on other medium or interests is fine and you may learn a lot of things you would like to know before liking one medium you like (for example, me learning a little bit of music theory after already listening to Demetori), however learning it so late about something new also make your passion for something burn even brighter. You gain a certain appreciation you couldn't see/hear/read.
Anyway, this post has go on for a while already - for a post that's already dead for some months -, hopefully this is useful in someway, may encourage you to continue liking what you like or not feel "guilty" about "abandoning" one thing you really like. Don't feel bad about it, if you really need sometime before consuming something again, that's fine and when you come back, it's gonna still be right there, just as gracious as you left it.