Most Helpful Girl
When you think about a four year age difference for older people it is not really a big deal because it is a smaller ratio of their life, however, for someone as young as 17 I would say probably not. I would definitely be concerned about the guy's intentions because 17 is sort of a fragile age for girls where they are starting to look for a real relationship, and they are very vulnerable to falling in love, and most likely, the older guy is thinking about sex first.
If you even just consider the logistics of how that relationship would work, it's most likely not a happy ending, because you are approaching high school graduation and starting to think about college. Whereas, he is just graduating from college and starting to think about finding a job, so he will probably be moving soon. Also, you wouldn't really have much in common, and the intelligence levels are very different, so there wouldn't be much to talk about.0