1. He’s Bought You Flowers Vs He’s Bought You Tampons

A good boyfriend will buy you flowers randomly, just to make you smile. He might even come home with a pack of your favorite candy. However, a serious boyfriend will go the extra mile. He'll push aside his embarrassment and buy you tampons or pads. He'll never get the wrong ones, either, because he knows exactly what brand you use.
2. You've Used His Bed Vs You've Used His Toilet

You might've slept over your boyfriend's house a few times. That means you're used to using his pillows and blankets. However, if you're serious with him, then you've probably used his toilet to do more than just pee. Unless you're in a serious relationship, you wouldn't risk stinking up his bathroom.
3. If He Knows Your Dreams Vs if He Knows Your Flaws

A regular boyfriend will know what you want to do with your life. However, a serious boyfriend will know more than that. He'll also know about all of your "flaws," because he'll witness them firsthand. Of course, he won't consider them flaws, because he'll love even the most awkward parts of you.
4. He’s Seen You Naked Vs He’s Seen You without Makeup

It's one thing to let your boyfriend see you naked. It's completely different to let him see you without makeup--or even worse, with your acne cream on. If he's seen that, you two are definitely serious.
5. He’s Met Your Friends Vs He Knows Secrets about Your Friends
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A regular boyfriend will know the names of all of your friends. He might even consider them to be friends of his own. However, a serious boyfriend will know every last detail about your friends, because you'll always talk to him about them. He knows things that he never even wanted to know.
6. You Know His Schedule Vs You Know His Passwords

A regular boyfriend will know what days you're free and what days you have to work. However, a serious boyfriend will know the password to your phone's lock screen, and will know where you store the extra key to your house. There won't be any secrets between the two of you.
7. He Plans Next Week's Dates with You Vs He Plans Years into the Future

This is the biggest difference of all between a regular boyfriend and a serious boyfriend. A regular boyfriend will make plans with you for next week. However, a serious boyfriend will make plans with you for ten years down the road. He'll talk to you about kid names and apartment locations.
Your boyfriend could always turn into your serious boyfriend, so you shouldn't worry if he doesn't currently do everything on this list.