Not Interested To Hang Out With You: It is ok for your man or woman to spend time with their friends. But when your man/woman keeps giving you excuses about hanging out with his friends, then he/she does with you, then it is a way to let you know your relationship might not be working as you think.
In a relationship, hanging out with each other is one of those things you should always do together, you should be happy to hang out, go to places, talk about each other, what happened during the day and just go close to a nice view and look at the stars together.
When your lady/guy is finding it uncomfortable hanging out with you, and will prefer staying more with her friends, your relationship is heading to a rock.
Too Busy For A Simple Text/Call: This might sound ridiculous, but a lot of relationships have shifted their calling and texting to different apps online making it easy for the ladies/guy to communicate on the move via smartphones.
But when your man/woman stops calling/texting you because they are busy, you should watch out for the relationship. Viber, Tango, Skype and many other free apps are available for texting/calling for free. Though sometimes, you can be busy with office work, but a second to say "I miss you" will go a long way.
Also a lot of people will not send messages or call when this apps are down, that says a lot about how they care, if you go offline via those apps for 24 hours and your supposed lover did not call you, then your relationship is shaky.
If they keep saying i dropped a message on those platforms in the morning and they never got a reply till evening time, that is not who you want to be with.
Stop Making Efforts : Relationships is not a do or die affair, sometimes it goes the way nobody planned. What is the effort one of you is doing to make it work? Have you complained about what you want and what is the effort of your man/woman to make it work. If you tell your man/woman what you don't like in the relationship, but they do it comfortably 2 weeks after your complaint, it is a sign they might not be too much into you
A Relationship is all about respect and respect only, there is a degree of fear, a romantic fear that makes it all works out.
Don't Care Even When You Wants Attention: Ladies wants attention and they want it in its full, 100%. Don't deny them of their maximum attention. Don't see this as a way to think they are weak and you can toy with their feelings. No. Give them the attention and make them feel on top of the world, it means a lot to them
Just like ladies, men want attention too, don't make them beg for it, give it to them. They may act like Spartacus or the playboy in your favourite magazine, but the simple truth is, sometimes they want all of you to be just for them and themselves only.