Intrusive thoughts about husband?

Any one ever intrusive thoughts where youre scared that your husband is cheating, or that he is gay? Even if there are no warning signs?

These intrusive thoughts bother me the most because they both mean losing him, and I think that's why I have them so often and why they keep reoccurring. I've suffered from intrusive thoughts for a long time, but this is the ones that I can't get past.

I mean there are no signs. He is obsessed with my boobs and eating me out, he loves my body and is always wanting sex. He only looks at female porn.

He also has a set works schedule and is only ever home with me and our daughter. Why are these thoughts so awful? It's irrational but they won't go away.

How do I get rid of them?