This is for all the previously single mamas!

I have a daughter who is 10 and I am a single mom. Her father was never in her life. I wanted to ask, for the women who were in this predicament and got married. How did you guys know that this person was the right person not only for you but for your child. I feel its harder when the kids are older because literally all they care about is Roblox lol. Also, how did you introduce the guy to your child?