<human>: Can you condense the text into a few key points?

So I've known this guy for a few months. We went out once a month ago - I asked him out as a joke, and he took it seriously - we chatted for six hours straight and I felt like we really hit it off intellectually and emotionally. Problem is when we're not together, he feels really far away. We have really fruitful conversations through text, but we text only once a week. It could be because he's kind of a workaholic and his job is really busy, but I feel like if he were interested he would text me more often than that. Despite appearing so distant he asked me out for my birthday and he planned something pretty sweet for that day. I feel like he's sending mixed signals and I really don't know if I should keep my hopes up.
<bot>: minimum contact with crush, go out once a month, text once a week, but have a really great time together when we do. Does he like me?