You seem to immediately lay claim to any woman who responds to you -- and then are overly disappointed when these newbie "relationships" fizzle quickly. You seem genuinely shocked and puzzled as to why.
First, I'd suggest you stop trying to date any women you meet at out of town, random events. There is NO potential in asking out these women...so don't bother.
Get involved in something - anything •where you live• and let these relationships develop naturally over time.
You seem to take any friendliness as interest -- and quickly ask the women out -- sometimes they say yes -- and sometimes they don't even open that door -- and try to politely turn you down, by using tried and true excuses.
You seem to want a relationship SO much that you're reading way too much into these encounters.
They're at best mild flirtations -- and the majority of these women don't want them to go any further ... but you pursue them hard -- so some do accept a 1st date -- but rarely does that lead to a second date.
You need to put yourself into situations where you will meet and get to know women over time, in a natural way. Volunteer somewhere or join a gym, hiking club, book club, cooking classes etc. ANY activity that is ongoing that would afford you the chance to just relax -- and let things happen naturally without you pushing so hard.
It would appear that your anxiousness to date somebody screams needy -- and is turning these women off.
When men behave anxiously like you do -- instantly asking them out -- and pursuing them hard for more dates -- it scares people off. It's too much too soon.
It's as with many things in life -- you need to stop having any expectations -- and just live your life. The universe can and will bring someone into your life -- when you're ready.
At this point, you come across as someone who is pursuing too hard -- too quickly. And I'd bet when you do get a date -- you're talking too much about other things you'd enjoy doing with them in the future -- mentioning other places you'd enjoy taking them too, on future dates etc. This scares people a lot!
Most women like to get to know someone for awhile before they date them. When a man they just meet -- instantly asks them out -- they know it's only based on physicality and not for any deeper reason.
You sound like someone who has been successful in life -- and who is used to getting what he wants by working hard. But in dating -- you can't just order up interest and force someone into wanting to be in a relationship with you -- just b/c you think you're doing all the "right" things.
You give yourself away so easily to anyone who shows you any friendliness ...play harder to get!