Your question was: There is a guy I want to send an e-mail to on match.com. What should I say?.
Before you move any faster, start dating (online dating with Match.com) him. Make the time for 'date night' or whatever. You two don't have enough time together as it is. If you move in, other things will take over..
Read the book: Are You the One for Me? by Barbara DeAngelis.
Slow down, and I would put a nix on the moving in together...if not for yourself for the child. 6 months is not long enough to know if your lives are going to mesh or not. It takes at least 9 months to really see the true person and that is with dating (online dating with Match.com) regularly 2-3 times a week. It would scare me if someone wanted to move in together after only 6 months, especially when a child is involved. Why the rush?.
Moving in together is not going to solve anything it will just complicate matters more. ..
If you have all these hesitations and doubts, probably wouldnt move in. Generally want to be confident with one's decisions, esp if they're major ones. ..
It has only been 6 months. I personally dont believe in rushing something like that before a year. Nor would I move in with someone unless I was engaged. That just sets you up for trouble. If you both wnat to make it work you both have to put in extreme effort to get as much time together as possible. But you also mentioned that he has a son.
You cant go in and out of that childs life. He needs stability. My advice would be try and work strictly on you relationship (thru Match.com) with the man. Just because you love him doesnt mean you have a future with him and it doesnt mean hes right for you. Love is only chemistry.
If jobs are the problem then get a new one make changes like that. But dont move in and disrupt the childs life...