But then how would it be handled? It requires the other party to flirt with the PC, at which point the PC can either respond positively, which warms up the romance, or turn them down, which ends the romance.
In the case of Anders, a nicer way to turn him down would have been very welcome.
Add to that that there is very little complaints about Isabella very directly flirting wtih Hawke's of both genders.
There were enough that a change was made in a patch. At the end of her recruitment mission, Isabela makes a very flirtatious comment, and Hawke initially reacted with a facial expression that I read as amusement, but others apparently read as an expression of sexual interest. That expression was removed in a patch.
Note that the complaint was not about Isabela's behavior, but Hawke's response.
Maybe? Like in DAI? But there's a meaningful distinction between flirting that leads somewhere (whether you're aware of it or not, like Alistair and Leliana in DAO) and flirting which goes nowhere unless you click on the giant glowing neon sign at the end. Which I think is the case with most of Bioware's characters. Sometimes people flirt and I'd prefer they have some semblance of autonomy in this regard rather than hoarding action and reaction all into the player's sphere. Cortez, specifically, who this conversation was about is an example of such. He flirts but it goes nowhere unless you want it to. Vega too, pretty sure you can display disinterest/displeasure whenever he flirts as well. Traynor doesn't go anywhere either unless you choose to enter the shower with her. etc.
I don't expect to have any control over the behavior of NPCs. I do expect to be able to decide when my character will flirt and with whom.
Try to start a friendly conversation with Jacob in ME2, and Shepard turns into a sultry sexpot.
As for Vega - uh, no. In both cases, they are autodialogue that I've never found a way to avoid - other than to avoid the conversations completely.
RE the cabin conversation - at the end, Shepard says the bed is harder than it looks, and Vega puts up his arms and says he'll take her word for it, as if rejecting a proposition. My take-away from that is that Vega thinks he's so OTT hot, that even a lifelong lesbian currently in a relationship would cheat on her mate for summa dat.
RE the tattoo conversation - her parting comment asks him when he's going to make good on all the flirting - which is an expression of sexual interest on her part. The writers deprived me of the opportunity to play a character who would not be sexually interested in Vega.
And - no, I've never allowed him to call her Lola.