Engaged & Questioning

I’ve been engaged to by best friend for about 6 months now. He’s my favorite person I know, period.

I’m never been very sexual, and never craved marriage/kids, so I’ve often wondered if I was maybe asexual or a lesbian. Obviously, now that I’m engaged, its more important than ever to determine... I would be too jealous to invite another woman into our bedroom to test my theory (also, not that sexual), so I’m throwing it out there to see if anyone here has regrets moving forward with a marriage for similar reasons, insight, or also feels slightly asexual.

It is hard to promise so much to my boyfriend, when I’m unsure of so much of myself—except that he lifts me up & I love him. I need advice!