i do no think that this relationship with this person is out of convenience. i do not think that at all. it's just a matter of coincidence that all of these things happened at the same time. no one knew that we (you and me) were in a relationship. and, he moved on too slow or was just looking for more opportunities with me that i do not know.
but why would you think that this thing with this person, would pose such a big issue between you and me? cause, the way i see it, its two different things.