Dear Thelma: I think my younger colleague is attracted to me

She wonders if the attention she's getting from a younger man is innocent.

Dear Thelma,

I’m 45 years old, married with a young child, and my husband is working in another state. My hubby and I meet up monthly. Recently, I got to know a young man, M, at my workplace. M is 25 years my junior. We became good friends after I helped him to solve some problems in the workplace.