One = Single.

One (movie) ticket;
Who do I have in my life
to waste at a game of cricket?

One (birth) date;
Who do I have in my life 
to make another plate - for?

One (large) order;
Who do I have in my life
to be smaller?

One (washing) load;
Who do I have in my life
to hit the road - with?

Table for one;
Who do I have in my life
to go out with? 
None!