I'm a little late on this now, I was going to say it in response to a post a few pages back but then I didn't. Someone speculated that Alex could be a beard for Noah, but I think he's just bisexual and flighty. I get the feeling that he was probably into Alex at first, feeling all warm-fuzzy, so having a baby sounded like a fun 'why not? we're in love!' type thing. I don't know much about the start of their relationship but I wonder if Noah even expected baby to make it. Or if he thought that far ahead at all.