What is this guy's end game? A man of this type... any insight?

I have a new man in my life but the relationship is very strange for me. How do I know if it is going well or is normal? How do I love him best?

I'm a Virgo sun, Leo moon, and Leo rising. I have Venus in Libra, and Mars in Scorpio.

I'm the one that asked him to be my boyfriend after a very long time of just dating---but doing very relationship things---we had no expectations. Friends with benefits. I brought up having a relationship and he said we'll talk about it later and deflected it with some jokes. The next day I told him either were together or I leave. He asked me to be his girlfriend.

Thing is he is scarred apparently from previous relationship with a BPD girl that he loved for 5 years, drugs, and then three relationships that lasted only a month or two.

He's very very slow to open up and be emotional. He's very responsible and stoic and sensible. He jokes A LOT. Jokes and constant mental stimulation is what usually our casual talks are about. Monotone voice. But everything is very casual. He jokes about his very serious past. He jokes about nearly everything. His flirting and romance is very childish. It's all very very slow, but I am patient. Beneath it I see a very strong guy...but he rarely shows that part, it's all nuance. He's well read, worldly, interesting, ect.

I show him love by touch, sometimes words, service. I try to bring him comfort and security by being the one to openly show love to him so he can feel safe to do so himself.

What's he hiding? How can I make this relationship work with him? What is he looking for? ANY insight I would appreciate. Sorry for being vague. Men usually chase me and show me their emotions and bend over backwards for me and compliment me and ect. This guy is extremely controlled. I'm not used to it...

Thanks for anyone that read this.

http://imgur.com/a/ryK2U

Sorry, here's his stats.