Rarely is a waste of time to "sarge" a woman with a boyfriend as most "quality" "hot" women will have a boyfriend. And it is a nature of most women to dump their "boyfriend" once she finds a better one. Call it branch swing.
Now...if she cheats on her boyfriend (e.g. does not branch swing)...that's bad.
If she is married or living or engaged with him...that's bad.
If her boyfriend is your friend, family member, co-worker, a very good aquaintance...that's bad.
Other than that...women that a LOT of men go after...tend to have a boyfriend for the most part. How serious? That always remains to be seen.
If she does not show any interest for you...the right thing to do is move on.
Now...if she cheats on her boyfriend (e.g. does not branch swing)...that's bad.
If she is married or living or engaged with him...that's bad.
If her boyfriend is your friend, family member, co-worker, a very good aquaintance...that's bad.
Other than that...women that a LOT of men go after...tend to have a boyfriend for the most part. How serious? That always remains to be seen.
If she does not show any interest for you...the right thing to do is move on.