There is a first time for everything, he thought philosophically. Then, wanting to complete the implied analytical schema, he added: and thus there is also a last time for everything. You may or may not know it to be the last time, but there’s bound to be one at some point
To go on dates is an example of this. There are plenty of first ones, some even fondly remembered, but there’s bound to be an equal number of last ones, probably less fondly remembered
His thoughts, not wanting to linger, moved on to other things. The phrase “the last vape” briefly occurred to him, and he thought it ever so slightly too pompous to ever be used in a proper context