Can any boy help me understand this ? or even girls i guess.?

okaaayyy ! well theres this guy and im just gonna say its john. well we've been talking for a long time like since october'ishbut i dont think either of us are really ready for a relationship yet. And he is not a virgin anymore and has donee a lottt of things with his last girlfriendd. And i have only hooked up with boys. I feel like he definitely wants to go further cause he'l always talk to my best friend about it and she tells me but im not ready. but i dont wanna lose him but i feel like i am because he's getting bored with me. i also dont like making out with him in front of a lot of people so we do its in private and its cute. but he'l always tell me that i need to show him that i like him more but im just not into the whole "pda" thingg. so it always get us into fights. is there anything i can do to keep him interested without going to far ?