He occasionally tells me sweet things like how much he misses me and cares about me, and I fall for it every time even though I KNOW  he is a liar. For example he said he "missed me" while he was on a dinner date with another girl who flew to his country just to see him. Then on the SAME DAY he updated his online dating account, where he has a fake age. The other girl is in love with him because she is CLUELESS. I only found out about his shady stuff through my online research skills (hehe). But even though I am in the know, I still want his validation and will keep responding to his sweet words. This makes me feel so weak. It's like I've lost all rationality. 

Can anyone relate to this? Do you guys cling onto manipulative people even when you know that they are manipulative? 