Trust Issues anyone?

So, question : if someone has been running around like a headless chicken, feeling like they're working two jobs and have two bosses instead of the one real job they have (the paying one) and is really really going out of their way to help someone set up a company...and in fact is doing MORE to make sure this setup runs smoothly than the company owner themselves, and is getting nothing in return for this as its done as a favor...where in all of this does the accusation "you were probably busy getting laid" fit in?!  Is it just me or does that not even remotely make sense? Why would anyone assume that person a) has the time to go out and get laid and b) has the desire to get laid by anyone other than the person they're pretty much pushing themselves to the brink of exhaustion for? I'm talking about 11 hour days in the office while madly multitasking to set up the other company. I'm talking about doing 6 hour errand runs and then waiting around for someone to sign papers that need signing. It probably involves a fair share of stupidity to do all this for someone who cant even slap a label on feelings, but regardless, wouldn't that be enough to prove to just about ANYONE that that person is cared about and really not about to be betrayed? What is wrong with people and why do some people have such a strong desire to push people away even when they are being given no reason whatsoever to do so?(and yes yes I know the whole rah rah rah about difficult childhoods and its a defense mechanism "I don't let anyone in therefore I avoid getting hurt", but surely at SOME point, time alone (over a year now) should help prove that maybe, just maybe that person can be trusted just a little)). ugh...rant!