All good. : )
In a movie, absolutely...unless the story circles around to the gay character(s) playing some pivotal role (with behavioral allowances for genre, obvi). In a television series it's a bit of a mixed bag; on one the one hand, it's the same as flotsam side-stories about hetero secondary characters personal lives that don't really forward the plot and are only there as time-fillers. On the other hand, it's a useful device for maintaining interest in the show as well as creating openings for new arcs which can be woven back into the main story line over the course of the season(s). Unfortunately, write-staffs seem to have problems balancing inclusive representation against dignity and frequently devolve into stereotypicals. TWD handled it really well --likeable, non-polarizing, realistic gay characters possessed of dignity, subtle subplot & development of tension with no stereotyping. Of course, the show's pretty dark in general so it would've lost viewership by doing otherwise.
Sidenote with bearing on the realm of serials, I don't know if you've ever sat through a few soap-operas -their writers are masters of the parallel/sub-plot story line. Not to get too nerdy, but if ever there was a theatrical representation of the Mandelbrot Set, it's the soap-opera.