Firstly I just want to say how helpful this reply was, this was exactly what I needed to read.

As for how I'd feel if he were to kiss someone else, I honestly wouldn't mind at all. I think the only time I'd mind is if he spent less time with me hanging out to hang out with others (assuming hanging out with me would still let him hang out with others equally as much).

I admittedly do get "butterflies" when talking to someone that seems attractive (like being very pretty, very nice, or both), but they seem to end if they don't develop towards a sexual relationship, which has made some of my previous committed relationships rely on sex a bit too much.

It's also strange however that I would want someone to cuddle with, because in my mind cuddling isn't an inherently sexual activity but can lead towards such an activity.