The more I've read of your post op I think this man sounds really quite creepy. My ex was very charming at first, but once he knew I was hooked, well, was there anything about me he couldn't criticise? Very subtly, of course, just enough to sow seeds of doubt in my mind - about myself, not him !
After we split up (many years later) those closest to me admitted they had often found him a bit creepy/odd/uncomfortable to be around. He was basically an immature, insecure control freak and, as in your case op, a few years older than me. He also did all the little boy "oh you've made me so sad" dramas over bugger all, anything that pricked his little bubble.
Trust me, I've been down the road, back up again and worn to death that cliched t-shirt in the type of relationship that I fear yours may become. After 4 months a fun, boozy night out with your new boyfriend should result in a hangover, a lie-in and fond memories - not posting on MN as to whether it's right he thinks of you as a "project".
There's a thread on here at the moment entitled something like "Right, listen up everybody..." basically about recognising all the warning signs in relationships that we should stay away from or leave, it's brilliant. Please have a look if you get a chance. If anything looks familiar to you - run for the hills, you owe him nothing and yourself everything. Good luck.