Hopefully, she won't try to tie Fuyuki down anymore. If Eri can not date Fuyuki, which is fine, she must be clear about it and let Fuyuki go. It would break Fuyuki's heart but it will be for the better in the long run.
I really think it depends on how much Eri wants to keep Fuyuki in her life.
If that's her core aim, I could see her trying to force romantic feelings, in the hope that she could "fake it 'til she made it", in order to try and hold onto Fuyuki.
That carries the potential of either actually working out and them having a happy relationship where Eri grows to develop genuine romantic love over time,
or she cannot make it work, which risks a double-dose of heartbreak for the both of them and would likely irreparably destroy any chance of them being in one another's lives at that point.
That, or she could try and not be so jealously possessive of Fuyuki, with the understanding that Fuyuki
will have romantic partners in the future, and that Eri necessarily cannot be her #1 for forever. If she can stomach that, I could see Fuyuki being able to maybe let her feelings go and maintain a friendship (she's basically done that this whole time already, just in an unhealthy way, and doing so now in a healthy fashion means keeping her best friend). But again, if Eri discovers she
can't not be Fuyuki's most important person, the same heartbreak/split happens, just without the attempted romantic relationship.
I feel like Eri's main goal is Fuyuki remaining with her in some capacity. Starting in middle school, she became so dependent on Fuyuki that their roles sort of flipped from childhood, which I'm sure contributed to Eri becoming possessive and jealous of her, and seeming to be selfish in always depending on her in a manner that seemed hurtful to Fuyuki (because Eri was never made aware of Fuyuki's feelings toward her, and Fuyuki just...went along with it all because it meant she stayed close to Eri, and that was "good enough" for the moment). Whatever their complicated circumstances and Fuyuki's refusal to say anything for so long, they both cherish one another, and Eri just as much as Fuyuki, if in a different context.
So I do think it would be odd if anything but Eri trying to repair their friendship happened in The Talk. The question for me becomes what Eri will be willing to do in order to make that happen, and whether Fuyuki can stomach that eventual decision (willing to try and date Eri, or willing to let her feelings go and be friends again, or if those are both untenable in light of everything that's happened).