It sounds like it may be starting to become a problem. You're skipping school to pet the kitty so it's interfering with your normal life. Being sexually frustrated is one thing, but when it starts to interfere with the rest of your life, then it's time to talk to the therapist.

And you would be surprised, I bet your T wouldn't be as uncomfortable as you imagine. I can only imagine the uncomfortable things that therapists hear and your frustrations are probably small beans compared to what they've heard.

Please talk to your therapist about this, if nothing it will help to get it off your chest.