Ironically, the vast majority of experimnting college gals go on to go right back to their straitness as soon as the ATMOSPHERE that is college passes. Strangely, the same thing happens with binge drinking, casual sex, drugs and attendance records. One might have to ask if the dominant variable in your example is the fresh autonomy of COLLEGE LIFE or anything even close to a pattern of choosing sexuality.
Nothing ironic about it, this was EXACTLY my point...I apologize for expressing it poorly.
I think that sexuality is a complex issue - one that we don't fully understand yet...for some, their sexual orientation is something that never changes. They are interested in members of the same sex, the opposite sex for their entire lives. For others, environment or life experience causes them to temporarily decide to seek out members of the same or opposite sex for a relatively brief period of time, and then they change...for others still, they spend a lifetime being interested in either sex interchangeably.
This is why I think that asking if homosexuality is a choice is a bit like asking when you stopped beating your wife.
For some, homosexuality is most certainly a choice - as it was for two of my roommates, one a girl who decided that men were slime and she would try women for awhile - dating another girl for a year and a half before breaking up, dating several girls before meeting a man who she is currently living with...and another, a guy who, after a great sexual experience with another guy as a freshman, dated men throughout college before marrying a woman he met at work. Both state that at the time - homosexuality felt perfectly normal and right, and now, heterosexuality does...for them, their sexuality was fluid...changing with age, experience, environment.
For others, homosexuality certainly does not seem to be a choice - as it was for a close family member of mine who ruined his marriage and hurt his child by coming out of the closet. Or, friends I know who have been gay for as long as they can remember. All state that they were aware of their attractions since childhood.
I guess my bottom line is, separating this issue into "yes, its a choice" or "no, its not a choice," is a gross oversimplification of one of the more complicated aspects of human nature...