Being a girlfriend of a single father?

Well first of all he most likely would not bring you into his son's life if he didn't like you. The son and father are a package deal so keep that in mind as well. Also where is the mother in this scenario. If she is alive she can potentially play a part in your relationship. it seems you are thinking a lot about the what if's and you are not certain if you really want to be in a relationship with this man. Is it that you are worried about the son or is he just an excuse?

I am in a similar position (for the second time!). This guy is going through a divorce after a long marriage because his wife cheated on him and said she didn't love him anymore. He finds it hard to open up. I know he doesn't love me and isn't ready for a full-on relationship, yet we are great friends and the sex is good. He doesn't want to re-marry or have more children and he thinks that is unfair on me. We can't figure out the future and I was nervous because I don't have my own children, so was not sure how to relate to his.

It sounds to me like your boyfriend builds confidence by flirting with women, but makes it clear that he won't commit because he is scared of getting hurt (again?). If your boyfriend is worth having, he will always put his son first. If you are really OK with that, just be yourself. Don't try to be 'cool' or act like the boy's mum, or get frustrated if he doesn't accept you straight away. He's had to get used to some huge changes in his short life. Take things one day at a time. Maybe your boyfriend wants to see over time if the 2 of you are likely to work out and how you get on with his son before he will 'let himself' fall for you - both to avoid getting hurt himself and to avoid confusing his son. Try to have fun and keep it light. If you think too much and have heavy conversations about the future, he could feel under pressure. That's the last thing you want if you want him to feel loved and supported and learn to love and trust you. Good luck!

Okay you need to make sure that all is up and up. He used to be a womanizer or is he still a womanizer. This is a very serious situation because you have the child involved. Check all of the options and possible scenario with this guy and if everything works out well then that is great. I would take it nice and slow.

give him time, give yourself time, and more importantly give his son time. You're not his mum, and he's still young. it might take a while for him to warm up to you. that might not be the case, it might all be good. but it might take some time. be patient with him, dont go saying anything that might upset him. leave all that to the dad. take it easy, don't rush it, keep it cool.

Be nice to the dad and be nice to the kid. Don't try to replace his mother, likely they don't want a copy of the mom. Be yourself and hopefully they will both like you.

have a good luck
keep it up