Tbh, I never thought being genuinely liked by a SP was a thing until recently lol. Not because I hadn't received good service, I always just assume it's all a show and fake, which is fine, so I've never looked for what you describe. However, I've recently began to repeat a lot with a couple ladies I liked and have experienced what you describe. Free time, extra services, forbidden services, genuine conversation, invited into their home, and so on. Now that I have had this type of service, goodluck getting me to spend any real money on anything less. I may venture out to other providers here and there but my bar is set so high now I doubt many will reach it, so I'm pretty much sticking with my regulars at this point.
Getting service, or extra/forbidden services because the lady genuinely likes you is much like getting a civvy girl to like you and have sex with you, mentally, I think. She has no reason to offer what she is except that she wants to, which makes you feel good because it's reasonable to assume she genuinely enjoys your company and wants more of it. This feeling can't be matched by someone who says "donation?" as you walk in then turns their back and walks away with it, only to move on to basic mechanical service with no connection.
Goodluck to all the gents still searching for quality providers in Ottawa that offer a solid GFE, I feel your pain.