YES. That is exactly it! As I've discussed with others, Shosanna (much like the Bride) was trying to settle in some kind of normalcy, some kind of stability. But no matter what she did with her life from that point on, she would not, could not change her past and who she was. Even Melanie stated that Fredrick made Shosanna realize that; that after meeting Fredrick, she became obsessed with vengeance. Everything she tried so hard to bury and forget came to the surface, and as we see by the end, he also made her realize that there could have been a life for her outside of the theater, that she could and did feel something for someone else. It's like what Quentin had said, that Fredrick had been unintentionally hurting her just by being the sweet boy that he was; he was completely overwhelming her with her own emotions.
So basically: Shosanna was settling because there was nothing else for her at that point, and so she thought she could live the rest of her life in a boring routine with mental and physical barriers between herself and the world. Then Fredrick came along and ruined it ♥

Hopefully you get it all settled soon! I'm finally getting Purple Butterfly to cooperate, at least.

♥ Bowing is sometimes necessary for such great work, hehe.
Aw. Okay then, if you insist.

THEY TOTALLY WOULD. I used to have a cafepress shop (t-shirt designs). One day I'll re-open it, and if I can make some fantastic posters out of those pictures, I'll have to include them.

YES, all of that. Wonderful. It makes so much sense, I love it.

Then Fredrick came along and ruined it ♥
Hehehe, gotta love him for that!

I WANT A SHO/FRED T-SHIRT AND POSTER. AND ALL KINDS OF FANGIRLY MECHANDISE. TEAM FREDRICK!! TEAM LOLMARCEL IS THE NEW JACOB, PROBABLY.