Guys aren't 4 year olds. They're not "scared" one way or another. It's called irritation. It's called annoyance. It's called this is suffocating and childish. When a guy backs off, he doesn't have commitment issues, he's not scared, he's not unsure of his emotions - women seriously need to unplug from that nonsense and knock it off already.
He backs off when you come on way too strong, way too soon, and push him to cater to all your insecurities, while you completely ignore who he even is.
He backs off when he realizes you're not the right woman for him.
He backs off when he's dealing with things more important than you.
He backs off when he's tired of you.
He backs off when he'd rather watch grass grow than listen to you bitch, whine and nag him about crap that doesn't matter.
Guys may be clueless in general about women as a gender, but guys aren't stupid. They are also not props and extras in your one woman show. Most women want a guy around as an accessory, like they want a new purse, they selfishly make it all about them...if they land a job in another city, they fully expect the guy to uproot his life and follow her all over the country. If they don't like his job, they fully expect it's his obligation to quit and find something that helps her sleep at night.
You ladies got to stop this, you're the one destroying your relationships and when the guy jumps through one hoop too many, he'll surrender to the woman who doesn't require that of him, the woman who doesn't head trip every other Tuesday on him, the woman who can see him as who he actually is and likes who he is, who gets to know who he is, who makes it about him for a change.
The sad reality is when he starts backing off, he's realized irreparable damage to the relationship and is questioning whether it's worth anymore of his time. As long as it's always about you and why he's not up your ass 24-7, you can be guaranteed to send him backing away for the count.
We can fix that.