A lightbulb moment

Ok I believe one
Not unexpected
But three?
In the one day?
In the one conversation?
Who would have thought
That I’m so dim?
Too dim to see how dim I was
Obviously
At least it is
Now that the (three) lights are on
That’s what I like about you though
Your humour
And willingness to humour me
Even when my brain is so obtuse
And the obvious and plain
Is seemingly neither plain nor obvious
But coffee helps
Same time next week?