Would you forgive him? Or believe him?

[Lindsey]

I have been dating a guy for about 2 months but we have known each other a lot longer and lived in the same house. I knew he had a girlfriend that is in his home country but they only became gf/bf through Facebook and have never physically been together. When we began expressing interest in one another I told him that I would not have anything to do with him if he was with her. Next thing I know he had told her to never contact him again because he was in a relationship with someone else. She continued to contact him and he would show me messages where she would be basically begging him to be with her and he would tell her no and to please stop contacting him. Part of me felt bad seeing this but for some reason I just couldn't grasp the fact that someone could really truly care about someone that much without ever really being with them in person so I didn't back out. Now yesterday I realized that he deleted me from Facebook so I logged into his account and came to see that he had blocked me and was friends with her again and furthermore she had tagged him in pictures of her and he had even commented on them saying love you. I told him that I did not want anything to do with him and he had a million excuses about the whole ordeal; one being that he had asked me if I was ready to be completely serious with him 2 days before and I never gave him an answer, which is true but that's because he is family of my children's father and I am having a lot of problems with my kid's dad because of this and so I didn't want the relationship out in the open until I was sure. He also said that I text with other guys which I do but I don't tell them that I love them or anything. Any who I completely ignored him and last night he was so upset about me wanting nothing to do with him that he was crying and telling me how true he has been to me and how much he truly cares for me and my children. He seemed so upset about the matter that I made him sleep in my room just because I felt so worried about him. Anyways I told myself that I would just be somewhat nice to him last night because I felt bad seeing him so upset but now I don't know if I should consider forgiving him? I really care about him a whole lot but I do not want to waste any more time on someone that is not sincere and true to me. Part of me understand where he is coming from because I now believe that his ex girlfriend truly does love him dearly and he may not feel the same from me because I have had a hard time showing him how much I care because of my last relationship. Also his ex girlfriend had told him a couple days before that my kids dad told her that the only reason that I was with him is because I wanted my ex and him to not be friends anymore and I wanted him to be shunned from the family basically because I have something against him from the past. My ex has told him when he found out that we had something going on that he couldn't believe that he would do this to him and that he should be careful and he has been even worse with me . I know I really got myself in a mess but how do I move on when I have such strong feelings now?

[Betty]

I wouldn't forgive or believe him.
This guy is playing you for his own needs and will never be trustworthy.
He's one of life's losers.
If you have any sense,you'll drop him fast and find yourself a REAL man...