Hi L.!
I am also a single mom of 3. I have 2 daughters, 9 and 12, and one son, 5. My divorced was final last month after a long 3 year battle. My ex and I are friends now, but it took work! He has been out of the home for over 3 years. I have a boyfriend who has lived w/ me and the kids for 2 years. It was hard on them at first, but now its great. I found that the hardest thing for them is that their dad has not met anyone yet. He has not dated at all. They feel sorry for him. I have a very open line of communication w/ all of my kids. For me, that has been most helpful. I think if you know exactly how they are feeling, and you are totally honest w/ them too, things will be ok. Meeting people can be hard, especially if you have no sitter. I would suggest going to a local church, and asking about a babysitter there. You can trust in that! A lot of times, they have flyer's up on bulletin's in the church. Also, I would check out singles groups online. I know it can be scary, but now days, it's geared much better. It is safe to meet someone in an open place. So you chat online, get a photo, and meet somewhere in public. There are a lot of websites for single parents. Just google it. Good luck to you!
T.