I always have a sixth sense that he is cheating on me?

I found him hiding her on me and putting her on his story and when it gone he unhide me , but I knew and pretended not to know anything and watched them silently, and now that they left each other, I discovered the girl’s toxicity with him, she always puts sad songs and that she is sad in her emptiness

She tries to attract attention and puts her pictures as a story with a sad song and a quote that she misses him

How do I make him miss me, but I still love him, but I don't put sad songs. Sometimes I don't put things on my story. Do I disappear some days like a ghost? Sometimes I put that I am spending a good time with my friends, buying myself a gift, coffee, and beach activities.
I always have a sixth sense that he is cheating on me?
Post Opinion