Soooo a little confused.

I'm a little put off by Senpai. It seems he knew about the stalker before he started dating Motoki, as he said he was being stalked before Motoki even started working there. So as a timeline, Senpai starts working as Ichigo, stalker-kun approaches him as seen by the one page where he comes in contact with him in his fully intact (not missing buttons) uniform, Senpai starts seeing stalker-kun around more often or things start happening, and in comes Motoki- a laid back kinda goes with the flow guy, Senpai then approaches Motoki with the intention of perhaps using him as a way to shield him from stalker because as he said after they started dating stalker-kun was away. Now for a while everything's good, and Senpai and Motoki start developing feelings for each other. Motoki first since he's kind of taken in by Senpai. Senpai even said he'd EVENTUALLY develop feelings if they had went out, he never said he liked him from the start(go back to the time when Motoki first tries being with Senpai for that whole dialogue).
Now I'm not sure if anyone felt this but I was seriously weirded out by the friend. I feel like he was the one who messaged motoki about breaking up. He's always mentioning how much he knows about Senpai, and if Senpai was calling him during the three years he'd probably know what had actually happened even if Senpai forgot. I mean Senpai remembers a hand that had touched him in ways he hated but couldn't remember him breaking up with motoki? And another thing didn't anyone notice how the friends hand on the chair looked exactly like the one that was remembered by Senpai right after he left? Not only that but it felt like a cover story when the friend was explaining what happened and then had to reaffirm by explaining again to Senpai who should have already known what the current events were like motoki thought "so this is the set up plot?" ....like IDK I was getting vibes from him like maybe he was an accomplice with a secret love for sempai or he was the stalker himself . It's confusing because some things add up and others don't. Like stalker had a camera and took pictures of sempai like the pictures that were taken behind the friend on the corkboard in the cosplay shop.plus he seemed super sad when Sempai was going to quit the shop and towards the end senpai ends up going back to work there like coincidence? I think its titled what's your secret because even in the beginning senpai was hiding that stalker kun was there, and towards the end the whole story is still obscured by the fact he can't remember and just repeats what friend kun had told him as well as the doctor. Isn't it weird that he remembers everything that happened before he left and he had come in contact with stalker kun before Motoki even worked there.... so how wouldn't he know what the guy in the picture, whose supposedly stalker kun, looks like? Just some thoughts and maybe someone else can make sense of it.#－.－)