Portents of things to come

So my new relationship with D____ was going better over the last few days (I thought so at least) after having examined some of my behaviors in how I was treating him after getting a chance to put myself in his shoes and imagine what it would feel like in his place moving into a new home and jumping into a relationship as quickly as we did.
I will give full credit of my increase in patience and tolerance and understanding to my effort at increased meeting attendance, because when I've been able to share about what's been going on and hear myself articulate out loud to the group how I'm feeling or what my problem is, it is, inadvertently, igniting a process of processing through all my feelings and emotions and thoughts that I'm bitching about regarding that particular problem, and by the end of my share, I feel like just in sharing I found the solution because I was able to get it out vocally, look at it in the face, and choose another tactic instead of the self-defeating one my head will try and convince me to take.
Anyway, like I said things had been going pretty good.  However, last night, long story short, I got some feedback about D_____ from a trusted source who shall remain anonymous that made me very wary of D_____'s intentions, as my friend and confidante informed me that, to him, D_____ seemed like the person who would take advantage of someone and a particular situation if it benefited him, but as soon as something better would come along, he'd jump ship and go join that band wagon and leave the rest of us in the dust.
Then, to add to the drama going on in my head because of this little truth-telling session, more sparks ignite as I am getting undressed in my bedroom and realize I can't find my phone.  And thus begun a nearly 3 hour search of trying to find my iPhone in my room to no avail.  Finally, after several hours of just being in pure panic mode, I messaged my friend to see if I had possibly left my phone in the back of his car and, to my absolute joy, he found it.  Anyway the point of this is, when this friend came back to my apartment to bring my phone back to me, he divulged some more tidbits of wisdom and experience regarding my current predicament and how he suggested I should carry myself and treat the current situation.  After hearing his argument, I can firmly agree and enthusiastically admit that I was absolutely WRONG to invite someone to come live in my home and then be my new partner all within the course of a week.  I mean I know I got mad swag and I move quick but goddamn.  So basically, I'm learning a lot of new stuff about this person that I don't particularly mesh with and am starting to come to the conclusion that we might not be right for each other as, even my closest friend/other roommate told me this this morning, he and I are absolutely NOTHING alike and we operate out of two completely opposite ends of the spectrum.
So I don't know what's going to happen.  I'm just going to take it a day at a time and a development at a time and see what unfolds between the two of us and go where life dictates this relationship should go.