By the end of the season, over the span of two episodes? It would be pretty forced, yeah. The season finale's blurb specifically says they're still on the rocks from whatever happens in "Just Friends" (and it probably won't get much better in "Face the Music"), and so much shit is going on that all points to things getting worse before they get better.
I could see a reconciliation, even some shoulder-crying and hugs, but that's not anything more than the end of S1. Marco coming onto her while she's vulnerable and he's still dating Jackie would be totally out of character, and I doubt he's breaking up with her anytime soon unless they shit on her character too. But, Star taking the reconciliation/comfort too far and trying to kiss him or even worse, confess to him would be the culmination of the "Star fucking up everything" theme the season has had, and forcing him to reject her would probably be enough to push her off the deep end.