How would you react if you suspected your spouse was interested in the same sex?

Hi everyone, I am having a really tough time and could use some help. I am a 33 year old male, married with no kids. For over 10 years now, ive been struggling with what my sexuality is, fantasizing constantly about various things with same sex situations. Over the years, i have became so confused that i started confiding in my female friends, and friends of my spouse for their opinion. It has back fired to say the least. I started going to therapy, and while its helped a bit..i leave more confused than when i started. My therapist thinks i suffer from obsessive thoughts, and that i should consider going on medication. My wife and i have had a couple extremely awkward conversations in the past, but it is not something we talk about regularly.I find myself constantly googling LGBT articles and stuff. Am i in denial? What do i do?