Hi sisters ! Here's my two cents on the pics of Taec having dinner with two SNSD members.This is just my opinion so please don't take this as if I am trying to influence you or defend someone
Taec has been photographed before dining or hanging out with other Girls' Generation members. He was even rumored to be dating a former member as they were photographed together ordering in a coffee shop but he immediately denied that they were dating because he knew it would be disadvantageous to the side of the girl (I remember Sis DOH, you were disappointed that up to now the actor who was rumored to be dating Shin Hye has yet to come out categorically that they are not dating and has let Shin Hye bear the brunt of the rumor).
And it has been repeatedly reported that Sunny has been Taec's good friend for several years now. I remember seeing this video of Sunny calling him up to be introduced to one of the casts of "Roommate" who was looking for a boyfriend. Taec picked up even though he was in Thailand with other 2PM members, that's how close they are. But, you see despite all these years, their friendship never progressed into something romantic. Sunny was even linked with Seo In Guk and not Taec.
Taec before was always being partnered with Yoona. There were even videos of him giving her a kiss on the forehead and other touchy/romantic scenes but there was never a rumor that he did court her or him saying out loud that he was her ideal girl. It was all media play and now that Yoona is no longer with Lee Seung Gi, some people are trying to again link her and Taec together.
About his ideal girl, based on my observations from articles and videos, before he was consistent in saying his ideal girl is Ha Ji Won and once in a while it would be Scarlett Johansson. And I think that question is not one of his faves, that is why once in a while he will answer that some time it will change but he is consistent in saying he likes an independent woman who will share his love for food.
I think it was only in Shin Hye's case that he did admit that he likes a particular woman and it was not just once but even said it in an interview without being asked
With Lee Yeon Hee, in the show "Human Condition" his high school friend kept insisting for Taec to introduce him to her and even divulged that even back in high school Taec was not even a fan of LYH 's beauty
and this was during the promotion of their movie Marriage Blues.
Of course, I don't know what's going on between Taec and Shin Hye, if they even keep contact or do they even know each other's phone numbers, but what I am saying is that for me their 3MAD interactions were so natural and heartwarming but will be very sad if it will just be ruined by a few photographs.
Sorry for a long, rambling post, again sisters this is just my opinion and I cherish our bonding moments here