Jīngguò péngyou qiānxiàn dāqiáo, tā rènshi le xiànzài de zhàngfu.
Through a friend playing matchmaker, she met her current husband.
Tips
memory
牵线 = to pull strings (like a puppeteer), 搭桥 = to build a bridge → to pull strings and build bridges between parties, i.e. to make connections happen.
usage
牵线搭桥 is used for both matchmaking (introducing romantic partners) and business/professional networking. It always implies a helpful, active intermediary role.