I think my boyfriend has been lying to me so I'm going to end it.
What makes you think your boyfriend is lying?
I looked at this info online and he has all the signs of someone who is lying to their partner.
If he actually is lying then yeah you should totally end it. But if it turns out that he wasn't lying, how would you feel? If anything, you shouldn't be breaking up because you think he's lying because that's not a good reason, but if it's because you just don't trust him overall then that is a really good reason.
Well I'm still going to end it.
You should make absolutely certain he is lying and confront him about it. Don't go behind his back and spy on him, if you are in a trusting relationship, he will tell you right away.