Never Ignore These 10 Red Flags

Picture this: You're getting to know a guy who seems like the total package. He's brilliant and witty and has a body like a Hemsworth. But then all of a sudden, a red flag pops up that makes you reconsider the entire thing. How do you deal? That depends on how serious a red flag it really is. Does he not see the appeal of Friends , like my boyfriend? That kind of minor disagreement isn't what I'm talking about, since it just amounts to a small thing you may not have in common. But there are a few more serious red flags you should never ignore, because they tell you a lot about the dude you're with. Have you ever encountered any of these? 

He moves too fast. Ah, the instant boyfriend. It's one thing if you're both caught up and rushing things, even if you may regret it later. But if he's trying to move things along and get intense before you're ready for it, listen to your intuition. A guy who's moving too fast often has less than pleasant reasons for doing so. Maybe he's actually scared of intimacy and is using you as his crash-test dummy for a real relationship, or maybe he gets attached too easily. Either way, it's not a situation you want to be in. 

He doesn't want to introduce you to his friends. It's a bit more understandable if he has a tough time introducing you to his family, since that's serious. But his friends? If it's been around a month of seeing each other and he's dodgy about you meeting his guys for even a second, it might be cause for concern. Don't jump to conclusions; maybe he's been hurt before and doesn't want to deal with the questions that he gets after a girl he likes meets his crew. But if this is just one of many red flags on his list, he might be hiding something.
He won't spend the night. Hello, cuddling is key! Even if neither of you wants to snuggle after you do the deed, there comes a point when it's just normal to sleep over. If he always rolls out of bed and heads back to his own place, it could be a sign of potential intimacy issues. Spending the night is an easy route to couplesville, so he might avoid it to keep you at arm's length.
He's mean to waiters. A guy who's rude to people who have to be nice to him has power issues. If he snaps at the waiter or bellboy, doesn't tip sufficiently (anything less than 18 percent is only warranted if the service was notably terrible), or makes fun of how people make a living, there's probably some nastiness lurking under the surface.
He doesn't listen during sex. You say you're not into something and he tries it any ways? Bye, Felipe.
He gets out of control. Does he black out from drinking? Depend too much on some Mary Jane to relax? Any substance-abuse issues are a clear warning sign. I'm not saying to immediately break up with a guy who may be an addict, but recognize that supporting someone through that kind of journey is one of the most challenging things you can put a relationship through.
He talks down to you. If he's mean, dump him. If his jokes actually slice at you like a knife, lose the guy. I used to think it was super attractive if a guy was a regulation douchebag to everyone else but nice to me. That guy doesn't exist. If he's rude to other people, you'll eventually get that treatment too.
He refuses to call you his girlfriend. You spend almost every night together, you celebrate anniversaries, and you don't see how he would have time to fit anyone else in on the side. If he still won't call you his girlfriend, I call BS. If a guy refuses to DTR, or hopes that you'll keep things exclusive without putting a name on it, he's asking for permission to get away with things. He'll always be able to fall back on the "I'm not your boyfriend" excuse, even if he is in everything but name.
He flirts a ton in front of you. Sure, lots of people flirt when they're in a relationship. But if it makes you or the other woman uncomfortable, pay attention to that. If he'll do it in front of you, what is he doing when you're not with him?

He's always busy. First of all, don't jump to conclusions. If he has a crazy job or intense family, it makes sense that a lot of his time will be occupied. But if alarm bells start going off because you can only get ahold of him when he wants you to, well, listen to them.        source