Will it be wrong to send out a like to her twin sister?

"Dated" a girl I met on Hinge for like two months (we only really went out on three dates and were mostly texting during that period) and then she eventually told me it "wasn't going to work" and wanted to be "friends". She ignored a message I sent to her like a week later so I kept it moving. Let's call her "A" to make this less confusing lol.

I've run into her twin sister, "B" twice at two different events and chatted with her briefly, and she said she'd say "hi" to A for me, who I assume B knew I dated before. But her A never reached back out to me or anything like that.

Well, I just rejoined a dating app after I said I was done with them😂 and guess who shows up first on my feed? B. I obviously find her attractive, and she was cool both times that I ran into her and chatted her up briefly. (Both times I also thought she was A, lmao). Would it be tacky to send her a like on the dating app?