“What causes that initial hormonal explosion? Falling in love is actually one of the most thoroughly investigated and well-understood phenomena in the relationship field. When we meet a person of the opposite sex, we are mentally sizing them up to see if we want to mix our genes with theirs. We then put the object of our affection to certain tests. First, we check for symmetrical facial features (evenness is a reflection of healthy genes) ─ men scrutinize women for curves (which represent fertility) and women generally go for a tall mate and will often choose kinder, more nurturing (feminine) features, over harder, more classically-masculine faces. In other words, women will more often choose Matt Damon over George Clooney, if they are looking for long-term love.”
Hormones set the volume of the tingly feeling. It’s well documented and if you’re not getting it – I suspect whatever age you are – you’re probably not on the right track. Stop and change… otherwise enjoy the ride.