I think this is a totally valid interpretation.
Especially based on how Kon refuses sex with her and they end the issue going "Friends?" "Friends."
Doubly especially as sexuality is rarely portrayed in a consistent way across multiple canons and writers when it comes to Marvel and DC heroes. Plus post New 52 and onwards Cass has had pretty much zero male interactions with sexual subtext, at least that I can remember-
However I just wanna make a bit of a case for Bisexual Kon and Cass here. At least in her original 2000-2006 run.
First, the Superboy crossover kind of took over the arc, but it's really supposed to be about Cass exploring her feelings after sexy bad boy anti-colonialist superpowered freedom fighter Black Wind starts flirting with her.
Cass's response to a dude being into her for the first time since she's had a 'safe' life is to... Open up the combat simulator and fight a bunch of shirtless guys then to pause the simulation to get a closer look.
(Also please take a moment from this nerdy sexuality essay about a 20 year old comic to note Bruce's face here. It's hilarious. His role in this arc is to be the dad from Dirty Dancing)
When Cass's body reading tells her Kon is sexually attracted to her she doesn't have an instinct to perform for it. It just makes her uncomfortable at first. So uncomfortable she initially rejects the idea and Babs rethinks the whole trip.
But later after he endears himself to her she's the one who changes her mind and engages the kiss with him. Notably after sexy badboy anti-colonialist freedom fighter Black Wind had shown up in between these two scenes to flirt with and fight her some more.
Then in the following issue there is explicit attention drawn to how she reads sexual attraction among other people.
The panel right after this "I need you" "I want you" "I need you" "I want you" "I need you" stuff is Cass immediately heading to Smallville for the booty call.
And even after Cass acknowledges that she's just lonely and craving affection they do still kiss.
I think the framing here with the couples embracing, her going for the booty call, and then dropping it after she realizes she's acting out of loneliness is more of a "I am acting out because I'm lonely in lots of ways" type thing, rather than just being post-Stephanie-grief.
Especially as these issues are all back to back, starting with Black Wind causing her to look at the shirtless guys- the crossover happening in the middle- and then the final confrontation with Black Wind and his anti-colonialism stuff right. Ending with Cass crying over Black Wind's death.
Much later after her loneliness revelation and all the Black Wind stuff, when she's finally setting up a real life she's expressing interest in zero. Kissing him and fighting through the mosh pit to mosh with him under sexually charged lighting- Where even her signature body reading text boxes go empty while she enjoys herself.
Then the final thing that happens before she leaves to find her mom is a date sequence with this same guy.
She even puts off leaving for the most important story of her run to hang out with him.
She leaves Bludhaven having basically created a life there, with both Zero and Brenda flirting with her in her final issue there.
As a side tangent not about sexuality gonna take the opportunity to state the super obvious... but we were really robbed when Bludhaven got nuked. It was very clear that Brenda and Zero were intended to have more to them for Cass's run. (Zero's tattoo is all over several buildings in Bludhaven!)
But if anything's consistent in comics it's big dumb events ruining perfectly good things.
