Daddy's Discipline Session Gone Too Far?

Well, my name is Jack and I'm a 45-year-old married man. My wife, Sarah, has always been open to trying new things in our bedroom but lately she’s really gotten into the whole Daddy/Daughter dynamic. She loves being called Baby or Sweetie, and I just love bossing her around and taking care of her. It all started about six months ago when we read some DDLG stuff online together and decided to try it out as a kink. We’ve been having a blast with it, she’ll wear one of my old t-shirts to bed, pretend like she’s lost her cellphone and needs me to find it for her, the works. So last night we had our regular Friday night date-night set aside for this kind of thing and I decided to push things just a little bit further than usual. We were in the bedroom and I told Sarah that if she wasn't going to be good or listen to Daddy then there would be consequences, which is something she really, really likes when it's said sternly. She was being playful and stubborn so I made her sit on the bed with her hands behind her back. Then I spanked her gently but firmly a few times, just enough to get my point across without hurting her. The problem is... once we got going, things escalated way more than planned because Sarah found it incredibly exciting. She was asking for more and teasing me to keep going. Next thing you know, she’s pleading for harder spankings and even suggesting I should spank her in front of the mirror so she can see how turned on Daddy gets when he's disciplining his little girl properly. And let me tell ya, that did it for me too because I’ve never had sex that hot before. It felt like we were exploring something new every minute. But after we cooled down and got dressed again, there was a weird moment of hesitation. Did this cross some line? Does she still respect me as her husband or just see me as the Daddy now all day long? So here’s my question to you, is it wrong for a married couple to take their roleplay so seriously that things get super intense like this? We both really enjoyed ourselves and there was consent, but afterwards it felt strange somehow. What do you think about where we should draw the line in our game?