When he loves you but says he doesn't want to be with you anymore during a heated argument but then you talk and he says he needs time apart to think, what does that mean? Will he get back with me? I am in so much pain and his child misses him too. How long do I wait?

If its really not over trust me you'll feel it inside I went through a similar thing with my boyfriend and it all worked out if you really truly love him and feel it deep down that its not over then I'm sure it'll work out, I just let my boyfriend know how muchhe meant that I loved him and would be waiting it was hard to be so vulnerable
Butthats what you do for love

You need to ask yourself why you both always get into heated arguments. How long have you been together, and are you really both compatible. You both need to openly discuss and be willing to make changes and work towards a more fulfilling and rewarding relationship if you want your relationship to work out. Understand his wants, needs, insecurities and how you can make him feel secure and safe, and try to fulfil his wants/needs (and vica-versa). Getting into heated arguments will not make him feel safe and secure for a future together.

I can't tell you when he will 'come back', or whether you will 'really want him back', but bottom line is something in your relationship needs to be looked at and changed for the better for it to work out.

Marriage Builders - Successful Marriage Advice (http://www.marriagebuilders.com) hosts lots of valuable information.

You don't wait at all to keep your household healthy and intact without him. Yeah it sucks to go through this, but handle your business until you see a clear path as to what YOU should be doing.

Give him space as YOU deal with getting over the shock, and the hurt.

How old are you? How long have you been together, and how old is your child? Do you work? Does he?