Geoff Schwartz is Erica's boyfriend and a member of JTP, Barry's friend group. Geoff had a crush on Erica since the 2nd grade and always tried getting her to like him but it didn't work. In the end of season 3 he decides to move on and starts dating a girl named Evey. The thing was Erica realized she like him and was going to tell him but then she found out he already moved on, consequently dating Evelyn Silver for most of season 4. Erica and Geoff like each other but neither than one admit to the other. Erica and Geoff finally kiss in season 4 episode 15 but in episode 16 are caught kissing and both feels bad as for sneaking around and agree that they should take it slow and date each other when its the right time. In season 4 episode 19 Erica and Geoff finally get together. During season 5 Geoff and Erica keep in contact a lot while she's away at college. They talk on the phone and visit each other a lot.
Originally Geoff had a huge crush on Erica, who herself found it annoying, and as a result never reciprocated his feelings despite all of Geoff's efforts, and just wanted to remain friends. To a certain extent Erica both had a bit of compassion for Geoff as well as brutally rejecting him during his several attempts to try and win her over, yet she was adamant in not dating him. Yet at the end of Season 3 in Have a Summer, Geoff made a mixtape for Erica, and after initially seeing it as desperate and pathetic, she later found it sweet and charming, yet when she went to tell him about her feelings she realised that Geoff had finally moved on, and he was then dating Evelyn Silver.
During the first two thirds of Season 4, Erica was obsessed with Geoff, though he was completely oblivious to her feelings, unlike Evy who saw her as a threat. Nonetheless Geoff was still very friendly to Erica during this time, regardless to the fact that Erica would often humiliate herself due to her feelings, such as in George! George Glass! or Stevie King.
In So Swayze It's Crazy, Geoff finds out that Erica likes him, and after initial shock and confusion the two embrace and finally are together. Yet in The Kara-te Kid Evy is shown to be seriously hurt by what has happened and the two of them terminate their brief relationship; devastating Erica. Yet later at the school prom in A Night to Remember the two of them after trying to be each others date for prom, realise their attraction to one another, and officially date again, with the timing being right for the first time.
Due to Erica moving to college in Season 5 the two of them try long distance, which though has initial problems such as in Goldberg on the Goldbergs prevails despite her being in DC.