Kase, Kase, Kase! WTF made you think that hearing your girlfriend tell you she loves you in a soft voice, right in your ear, would HELP you get to sleep? You need to learn more about the physiology of female arousal! (Adrenaline is involved in the process, which is why the "I'm tired" excuse isn't JUST an excuse, it's actually a REASON why she isn't into it tonight! The adrenaline isn't flowing because she's exhausted, so it doesn't matter what you do, she's not into it right now... Maybe that's why so many yuri manga have tons of scenes in coffee shops? Gotta get that caffeine!)