She had to hide this from Tim because he would be extremely jealous if he found out.
However, I suggest you let the therapist be your guide in deciding what to do next.
Pm me if you need a sounding board.
I visited this site 2 years back to speak about my separation from my wife which lead to a divorce.
I never really noticed her, or had any feelings towards her throughout the last two years since my wife became very good friends with her, then suddenly one day, I noticed her and she noticed me.