i just need to point out again that 'dry' and 'boring' are relative terms. i find most mainstream media to be boring - it's just all about twisted perceptions of sex and money. i find competition to be boring, yet others make it the central focal point of their existence. people could try and be a little less normative in their analysis.
well, ok. 'boring' does have an objective meaning. i'll use it in music reviews to talk about things that are uneventful, repetitive, meandering...
it's not used that way very often, though. it's usually just a close-minded insult that equates differences in interest with inferiority. it's a very arrogant term to throw around.
rather than say "you're boring", why not say "we have differing interests"? i'll tell you why - it's some kind of disdain. it's usually not fair to direct that at other people...
just realize that, most of the time, the feeling is mutual.