We're together 5 years, live 45 minutes apart. We see each other on weekends but not every weekend. I'm nearly always available. Recently we didn't meet up for two weekends at his instigation, one reason being it was raining and there's nothing to do anyway at the moment. I mostly go to his. Now he wants a sleepover tomorrow. I've said sorry, I'm not available, I'm meeting my older sister for a walk, which I am, but will be available Sunday to meet him. I'm just not willing to jump at this weekend because he's on for meeting. Is this understandable?