Hello & Welcome to Just Answers.
You sound like your OCD is really revving up, which is common in the springtime. I agree that it's time to up the SSRI and work on your CBT. You can go to this link for online self-help short courses that are free. site
As far as the feelings go, I wouldn't trust them unless you were in a comfortable, stable state. It sounds like you're lost splitting hairs and wondering what is right or wrong, real or unreal. Those aren't signs of attraction, they're signs of OCD.
Yes, adults get feelings for others even when they're in a substantial relationship, but they pass through their mind like a breath of air and then go away. When that doesn't happen, it's time to work on your CBT techniques and have your meds evaluated.OCD Worksheet
You can use the above worksheet to map it out for yourself.
If you would, please fill out the feedback form after accepting. I appreciate this opportunity to help you out today. If I can be of further service to you, just put "for Anna" in the front of your new question, and I'll be the one to answer it.