You guys discuss your sexuality with your friends? This seems weird, I don't think keeping some things private means one is lonely. Of course, at some point my friends will meet my spouse, which is broaches upon the topic. But in this context, it's clear that they are not potential targets of my sexuality, so there is no tension introduced. Also, once I have a significant other, I am no longer that lonely and I am open about my sexuality with at least one person.