Widow Just Dumped Me

Let me start at the beginning. His wife passed on over six years ago to cancer. I semi-knew him prior to our going out together. Didn't know anything about his past. He's 15 years older than me...he has two grown daughters (one I met the other not yet) and a grandson. I'm divorced with four children. My three younger ones aren't even past age 12 yet. We have been dating approximately 9 months. We got intimate very quickly. We hit if off right away. We had this open lively fun life with my kids. He ended up staying at my place most of the time. When I met his daughter for the first time at a public function, two months into the relationship, she ended up crying outside, but he said she had just heard a close friend died and she was upset. I didn't think anything except I felt badly for her. She didn't stick around the rest of the weekend. A few times, like around months four, five and seven, he accused me of being "unfaithful" (not true) and tried to break up with me, but we talked it out. Practically this whole time, he's been telling his friends I was the one and he was off the market. Two days before he broke up with me, he said he was going to marry me and he was going to build me a house. About two months into our relationship, he bought me a "friendship" ring that looked like an engagement/wedding band. I've been wearing it since then. Two weeks ago, he went to an annual cancer walk his family always attends. My kids and I weren't invited. After this, everything was fine for two weeks and then he went to see his daughter and grandson. That evening he called and was angry. He said we have been spending too much time together, I'm not ready for a relationship (not him, me) and he "heard" I was messing around. At this point, I was shocked...it came out of nowhere. I got angry and hung up. I just didn't get it so I started doing some research and found this website. I thought he was over his late wife, but now I'm picking up on some cues I never took seriously. He refers to his late wife in the first person, his inlaws are still his inlaws, he never lets me go with him to his house (he says he built the house for his late wife....everything she wanted, she got), it's almost like he keeps his life with me separate from his kids and grandson. I love him dearly...but I think I went into this relationship blindly. Before I did any of this research, I texted him that it wasn't working out (he wasn't taking my calls). Why would I put up with being treated badly and be accused of messing around from anybody? Been there...not again. Now I'm rethinking my decision. He's never said there were issues about his late wife or how his kids felt about us...now I'm beginning to wonder if its all about that. I've been crying five days...and I feel bad for my kids...because he really endeared himself to them. It's a mess and I still don't know the outcome. He still has some of his stuff at my place. I wish he would talk to me about what's really going on. I think if he did, I would be more than understanding. Maybe there was already a trust issue with him before we even met. I would appreciate any comments. L