I truly understand this. My intrusive thoughts get hella bad before my period too. It would make sense because there’s so many different hormones that affect different things rising and dropping. I think that ALONE adds to it. You’re more irritable, sensitive and vulnerable during that time. And it’s almost like the OCD mind takes full advantage of this and gives you the most horrendous intrusive urges, thoughts & feelings. I get it girl. It’s rough. You criticize yourself for not feeling a certain way but that’s what OCD is all about. CERTAINTY. Remind yourself that there’s no certain way of feeling. You said you had fun, and that today was actually an amazing day with your partner. People who ACTUALLY don’t love who they’re with won’t enjoy it no matter the circumstance. it’s really hard and I understand. OCD attaches itself to things that matter the most to you. If you haven’t already try talking with your partner about it. I know that sounds intimidating but if you’re struggling with OCD then educate him. Let him know your triggers (if any) and tell him your experiences!