Cap men and even women, please please help!?

Ok, so I'll try to make this as short as I can. Cappy men, and women are very welcome, but men may be more insightful! So I met this Cap man ten years ago, I was 19, he was 21. Over the course of those years, we've probably dated on and off for 7-8 years. Anyway, when we ended things the last time, which was a few years back, it was only due to him needing to focus on completing his dual masters degrees and getting his life where he wanted it, so he could give me more of himself, which he didn't feel he could, until school was knocked out. Anyway, so I did wait around for over a year, didn't really date anyone, until I met an Aries man... Complete surprise and wasn't expecting to ever like him. But I did, and I ended up in a relationship with him. Now it was brief... Not even a year, but more than half a year, and in that time, Cappy decided after he completed his degrees to start a relationship with some random girl, bc I was taken, and according to him, he believed I was going to marry the Aries, he made assumptions based off of what he saw on Facebook. Well once that relationship was over with Aries, I knew Cappy was still trying to give his relationship a chance... So we didn't communicate. Fast forward to this year, and we started talking again in April. Things didn't really work out for his relationship either, and once he realized I was still single, he got very happy and we continued to speak, as recently as today. (We send each other messages, almost daily and even at work). He usually is the first one to message each time. Not sure why... Maybe he's just faster than I am?! Lol
So anyway... The last time we spent a significant amount of hours together, was a little over a week ago, we both played hooky (mind you, as a Cap this man has NEVER taken a day off of work for a single thing), but he did, bc he really wanted to see me that day, and made the sacrifice. I should me boo this is a newer job for him, been there for maybe a few months? So we talked for hours and hours, he held me, stared me in my eyes, played with my hands, hair and of course we ended up in bed. _— we have the most amazing, beautiful connection I've ever had with anyone in my life! And ever since we started talking in April, he's been talking a lot about the future... And not his future but OURS... Together. He says he wants to marry me, calls me Mrs. (His last name) talks about our future two kids, and the trip we're planning to take this year for our birthdays to celebrat

To celebrate our birthdays together for the first time ever, in the Caribbean. So that same day, we discussed the ring I wanted (bc he asked me and wanted to see a picture for reference) and even told me what my ring budget was... (We tried on rings four years ago, and that was his idea)... He also is in the process of putting his current townhouse up for sale, and purchasing a new one closer to where I currently live... Well, he even told me, I'll be moving in there, his idea, I've never asked, mentioned, or even hinted about living with him anytime soon... Nonetheless, he wants me to move in once he buys the new townhouse. I also remember a month or so ago, he spoke of a third and final home he would want to purchase, which would be a single family, and he said my name could be on the mortgage for it. So now, him turning 32 and me turning 30 this year... He's a December 27th Cap, I'm a December 20th Sag, and all his friends have settled down, having kids etc. he may be getting the itch too. I guess what I need help with here is, is this man being honest with me? Does he mean what he says? After knowing me for 10 years?! I knew him when he was "broke" and have always been patient and supportive of all his ambitions and goals. He says I'm the most patient person he knows. And he appreciates that I've been this way and that I love him... I just don't want to waste my life on someone who just says what sounds good... Please help?! I apologize for the lengthy messages everyone! And many thanks!

Ooh the last thing I forgot to mention was that he says that within six months of me moving into the new house with him, he's planning on proposing! Which is one of the main things I wanted advice on by coming to you all Cappys!! Please, do help me understand if this is something honest from him, or if he's just telling me some nice words to keep me in his life.... I truly love him with everything in me, and he's had my heart for almost a decade. I just hope it's the truth bc nothing would make me happier, than to be his wife and mother of his children.
Thanks again!!