Is it normal to have strong

I was married for over 20 years(now divorced). Straight as an arrow. Then for some reason, boredom, whatever, I got fixated on the guys in porn, then gay porn. A few years later, I'm experimenting with men. Not sure what to make of it. Sometimes a good looking guy will turn my head, a good looking women will always turn my head. I love sex with a women, sex with a man is...idk...ok... It had its moments. Honestly, my favorite part of sex was pleasing a partner, male or female. But that seems shallow and physical. The romantic stuff, holding hands, dates, sharing a home and bed, waking up in the morining and getting off to a new day... I miss that part of marriage...(sigh) Feel like I just made a huge mistake, but it's past now... Gay sex now? eh... I'm divorced, so if the op arose, , I probably would hit it. Or not...don't know I'd prefer the arms of a woman. So am I messed up? Bisexual, or was it just a temporary curiosity?