The line between going ga-ga for someone and becoming completely delusional about the boundaries of the relationship is a fine one.

If your newest fling’s behavior is starting to give you a serious case of the heebie-jeebies and you wonder where the glowing personality went that you met on the first date, you may have hitched up with a psycho.

From bunny-boiling to phone-tapping, incessant emails to branding-style scratched initials in your back, there’s a lot to be afraid of. Herewith, six signs your honey is half-baked.

Communication Overload

There’s a difference between an eager beaver and a psychotic partner.

An eager beaver calls you once and leaves all their phone numbers and email addresses so you can find them when you get the urge to reach out. A wacko calls all of your numbers and sends messages to all of your email addresses — all day and every day. And the more time that passes between live interaction with a psycho, the more nutsy the notes and messages become. “Hey, it’s me” morphs into “I’ve called 12 times…where are you?” and finally, “Pick up the phone or I swear I’m gonna boil the bunny.”

Liar, Liar, Pants on Fire

The fibs seem harmless at first; they may even be confused or couched as miscommunications. But psycho partners lie incessantly in an attempt to control you. So what starts as lies about small things, like liver also being his favorite food (so that it looks like you two are so similar you must be soul mates) escalates into elaborate fabrications about him needing your emotional support because he’s just discovered that he has an identical twin brother whose cancerous liver will self-implode without a transfusion of your lover’s genetically matched blood.

Beware the contradictions, the overabundance of justifying details, the well-timed dramas.

Stalk Talk

Don’t be fooled by the cliche image of a trenchcoat-clad dude running from telephone pole to telephone pole as he follows his victim home from the bar.

Stalking girlfriends and boyfriends come in all shapes and sizes (and outfits). And their techniques are many: from blatantly setting up tent and bonfire on your front stoop to see what time you get home, to “coincidentally” planting themselves in public places they know you’ll frequent — your neighborhood porn shop, your synchronized swimming class, the recycling room in the basement of your building. Don’t discount the idea of your phone being tapped if it seems your lover knows secrets you’ve shared only with friends over the phone.

If you’re starting to get that creepy “being watched” feeling and have actually found yourself wondering how the witness protection program works, you’ve probably made allies with a lunatic.

Scarred Out Of Your Wits?

Some guys like it when a girl draws blood from his back with her French manicured nails. And some girls, when doing the doggy, like to be spanked till their buttocks burn pink. But if the recipient of said “passionate” punishment isn’t the one getting off, this kind of thing falls under the category of branding. As in, “This is my man and I’ve created a hickey self-portrait on his neck to show you that he’s taken.”

Mine, Mine, Mine!

We’ve all felt moments of jealousy in our lives. And that’s probably a good thing — a little bit of envy keeps us on our toes.

But there’s jealousy, and then there’s jealousy of the paranoid variety. Imagine this: you can’t look at anyone of the opposite sex, let alone talk to them, without your partner freaking out. And that’s just with strangers (read: I know you’re cheating on me with your doorman because you always say “hello”). Classic psycho jealousy behavior also pertains to, god forbid, ex-girlfriends and ex-boyfriends — even pals and family members.

In other words, to a psycho, everyone is a threat.

Pay attention to ME

A psycho needs constant attention, and if that need isn’t met, all hell breaks loose.

Does your girlfriend fall to the ground in a pretend faint so that you have to stay home and take care of her rather than hit the pub with your friends on a BNO? Does your boyfriend hold your hand or perform other PDAs only when other males are around? You see, it’s all about control and having power over you and the relationship. Psychos want to know everything (snooping is classic behavior and these dating duds seem to have eyes on the backs of their heads), and many may assume that you’re in a committed relationship just because you made it through a first date.

Caveat

Of course we jest. In real life, stalking, obsessive phone calling and other possessive behavior is not cool. And not at all funny. If you suspect you are being stalked or are otherwise being harassed by a former or current partner, don’t hesitate to call or visit your local police.

And if you are facing an emergency, dial 911.