I will do my best.
- Nish figured out what happened last Christmas and has agreed to take the blame, if Suki agrees not to marry Eve. She agreed, but he found out she lied and he's now escaped from prison ready to get revenge
- Sonia and Reiss had money troubles stemming from Stunning Debbie's care fees and their IVF expenses. Sonia decides to sell her house but on the same day Reiss murders Debbie for her life insurance. The police arrest Sonia. The only person who's figured it out is Bianca, so Reiss kidnapped her and locked her in his storage unit, and we've not seen her since.
- Billy's discovered he has a brother, who turns up on the square with his two sons, Harry and Barney. More recently, his ex wife, Nicola, has arrived and is ruffling feathers by buying Peggy's and giving Phil a bottle of booze. Teddy and Sharon are an item.
- Linda is in full blown alcoholic mode, but has gone to rehab after envisioning her own death.
- Harvey was paying a woman called Maya, whose husband was assaulted by Harvey's son. Jean didn't like that he lied and broke up with him.
- At some point Harvey and Kathy kissed.
- Jean has been the victim of a scam, losing all of her savings in a pension scam. She was then double scammed by the same people posing as solicitors trying to help her.
- Back when Dean was on trial for Keanu's murder (he later admitted raping Linda and is doing time for that) Sharon was sent to prison for contempt of court, clashing with fellow inmate Chrissie Watts. Chrissie tells her that Ruby Allen had a baby.
- Ruby arrives on the square as her son's birth certificate was stolen by people at Sharon/Johnny's request, to find out if Chrissie was telling the truth. Ruby confirms that Martin has a son called Roman, who is in hospital with autoimmune hepatitis.
- At first, Martin says he's going to get custody of Roman, but once things have calmed down, he agrees to donate part of his liver to Roman, much to Stacey and Lily's annoyance.
- Before his surgery, he kisses Stacey after misinterpreting something she says, then shares some moments with Ruby.
- Cindy and Junior (George's son) are having an affair. During this time David Wicks came back and Cindy ended up telling him about the affair and that she was still in love with George, and the whole conversation was recorded on Freddie and Anna's birdwatching equipment
- George's brothers from Ghana arrived to meet him, but one left when he found out that George knew their dad had been murdered. The other brother, Kojo, is autistic and has just come out of hospital after seeing Cindy and Junior together, resulting in Cindy "pushing" him off a fire escape
- Lauren became addicted to pain after the crush at Peggy's. She is also around 17 weeks pregnant. She saw Kojo and Cindy after his fall and Cindy had been agreeing to supply Lauren with pain to keep her from telling everyone about what really happened to Kojo.
- Lauren's pregnancy is finally announced, and Cindy is livid, refusing to provide any more drugs to Lauren. Lauren then goes for a nap, knocking over a candle and starting a fire. Louie and Lauren survive, and she tells everyone about Cindy supplying her drugs and that she's the reason Kojo was hurt, but nobody believed her.
- yesterday's episode showed Freddie and Anna putting the aforementioned bird recordings onto a computer. The end of the episode shows the recording playing, and Elaine hears Cindy's confession.
Hope that helps! I'm not sure when you stopped watching so I've tried to cover the last six months
