We say stuff like that to each other frequently (come to my bed!, let's get married!, etc), just messing around but we've only known each other for a really short time. Still, she didn't seem to object to the idea of being with me, except for the fact we both have other people XD
My current situation... Well, it's a long story, but the short version is that we are not officially together, because he feels a bit confused about stuff and what I think he's getting at is he wants to explore a bit more about himself and sort out his feelings. Still in love, but I think from now on we're just gonna kinda go with whatever happens. We could end up together in the end, but...who knows! It's kind of hard... I'm a together-forever kind of person, so I don't really like this at all.