Foreplay mode happens only after you become lovers with your guy! So, you're not doing anything wrong there! To help you become lovers with Toru (or any of the guys) as soon as possible, you will need to hang out with him as much as possible. Everyday, you should try to hang out with him to trigger an event scene which fills up your stars. When you can't spend time with him on a certain day, you should remember what day you missed and hang out with him next week. For example, if you miss Toru on Wednesday due to an audition, then you should try to meet with him the following week's Wednesday. This will help with filling up the stars. As for the heart, spending time with him (when it doesn't trigger an event), calling him, and inviting him out on dates will raise it. IIRC you only need to heart filled up to 80? or 90% to get a confession scene. I hope this help?