For the past two weeks, I have this intrusive thought that women take advantage of men for intimacy and I can't shake it. I believe I am in a normal relationship so it's weird. Can someone please help me?

In a relationship there has to be mutual understanding and acceptance, and when you see it like that you you discover no one is using each other. It's mutual and both are okay with each other. Once one takes advantage of each other it is no longer a relationship. Relationship has always been a 2 sided state where each is important and truthful for the state to be alive and healthy, as well as a commitment from those involved to keep and preserve the interest of each other not as an individual but as an entity of love.