In a last-ditch attempt to find ‘the one’, a cynical single Mother sets out to find answers to The 36 Questions That Lead To Love, and an unlikely romance ensues.

Let’s look at the basic logline formula and plug in your logline: (When [a major event happens], a(n) [flaw + main character] must ([overcome the flaw], and) [do/pursue the main action/goal].

“In a last-ditch attempt to find ‘the one’” [major event]
“a cynical single Mother” [flaw + Main charecter]
“sets out to find answers to The 36 Questions That Lead To Love” [overcome the flaw]
“and an unlikely romance ensues.” [do/pursue the main action/goal]

Looking at the formula I feel like you have all the elements but they could be stronger. The major event seems vague. I’m not sure how or what is “the 36 questions that lead to love” is or how it will help her, and the unlikely romance feels more like a happenstance accident. Why is this mother making this last attempt to “find the one?”

Maybe try something like:

She doesn’t believe in love but is forced to write an article “The 36 Questions That Lead To Love” to keep her job. With the help of her best friend, she sets out on a hilarious journey, discovering love along the way.