Confused

Dear Readers, I come to you for your advice...  I am going to try and present this as neutrally as possible, prior to posting my own thoughts below.

1) When LD and I first met, he was emphatic that if he ever caught me lying, he would drop me immediately

2) Yesterday, LD was supposed to be leaving on a business trip early in the morning.  He came online and I asked how his flight was.  He told me that his early flight had been cancelled and he was booked for an early afternoon flight instead.  He told me that, in fact, the airline in question had been shut down all morning due to the winds and weather we're currently having.

3) LD logs off to go catch his flight, and curious to see if he would be able to make it out ok, I check the airline website.  All of their flights from our hometown to his destination show up as having left and arrived.

4) This sets off my radar and I decide to do a little more digging.  I re-stumble across his twitter, where the following is posted:

just home from date # 2. Was it always this hard?8:59 PM Dec 5th from EchofonDecember 5th, if you'll recall, was the day that I got my piercings done.  When we originally made plans, we were going to spend the afternoon/evening together after I got pierced.  In the week before, he cancelled that portion of our plans, citing 'so sorry, but I have a personal issue I need to resolve and that aft/evening is my only opportunity'  On the day of the piercing he also had some work issues come up which were to fill up his afternoon.5) Two days ago I asked: "I'd like clarifications on the monogamy/polygamy aspects of our relationship... I am not allowed to play with anyone without your express permission (husband being the exception) - will you be pursuing other play partners/relationships?" His reply was "good question. answer is no. however, I might (one hopes) aquire a primary partner of my own one day... which would be my equivalent of your husband." and "I think this subject requires much more talk,... but perhaps not until you and I have decided whether to cross the line we are quickly approaching" 6) He called me last night when I mentioned that I was upset and needed come clarification on these issues. He explained that his 'date' was with a legal professional friend in matters relating to his ex-wife, and that he did not give me details because he didn't feel we were at a level where we would be sharing the dirty laundry of our lives with each other.  He insisted that the morning flights had been cancelled, and in fact his afternoon flight was delayed as well.  He encouraged me to continue checking up on him.7) With that in mind, I called the airline in question - they did not cancel any of their flights yesterday, though there were delays all day.
I am confused and torn.  Even as I write this, I know what the clear answer is, but I also know that things aren't always as they seem.  Am I just deluding myself because I've had such bad luck and LD and I have so much chemistry?  I certainly don't/didn't need all of the sordid details, but why "I have a personal issue" instead of "I have to meet someone regarding my ex wife"?  That Tweet really doesn't sound like it was a platonic meeting, now does it?  Don't get me wrong, I'm not pissed off that he cancelled plans with me to go on a romantic outing - a simple "I've got a date tonight" would have been fine.  I have a primary relationship, who am I to deny that for anyone else?  He clarified last night that he was not planning on pursuing any other BDSM relationships.This leads me to question though - is he looking for a vanilla primary?  Why? At what point would he tell this girl about me? Is he really going to find a "vanilla" primary who is ok with him having a sex slave on the side?  She's not really 'vanilla' then, now is she?
Why would you lie about something so easily verified by phone?  This double baffles me, because he has admitted to me a number of things that put him in a less-than-positive light... and you don't tell lies that make you look bad, right?  So why tell the truth about these big things, and then lie about something so small and easily verified?  Unless he's not lying and he was told that the flight was cancelled and didn't verify himself?  There is a big part of me that wants to accept what he's saying and just move on... I call her irrational!Rubenesque ... logical!Rubenesque is pointing out that even if all of my questions were answered satisfactorily, it still leaves him not being 100% upfront and honest with me.  I can't help but ask... If he were in my shoes... what would he do?  Dear Readers - what would you do?