However feels right to you.
I don't lie to my kids. My boyfriend lives with us. All of the kids know we love each other and we are a couple just like mommy and daddy are a couple.
Currently, I am sitting in the rain by a raging campfire with bf and the 2 youngest kids (13 & 6yrs). Dh was here but has to work tomorrow so went home a day early.
Our oldest is almost 22. Her sons are 2 yrs and 3 months. They also see me with both Dh & bf.
Additionally-family, friends, coworkers, classmates know because they see. We kiss hello/goodbye, hold hands etc. shrug.
Homestly, it hasnt resulted in drama or negativity. People who are judgmental leave. The people who remain are dependable, open minded, accepting.
"Love As Thou Wilt"