This was Linda' first solo hit. It's Long, Long Time, written by Gary White. This is one of the best unrequited love songs ever, a beautifully-written song that is beautifully sung.
By this time, Linda was developing into a cult singer, and she was acquiring devoted fans everywhere. This song made it to #25 on the Billboard Magazine charts. It was included on her 1970 album, Silk Purse, where she famously posed with pigs.
Linda was also nominated for her first of many Grammys. She did not win, but she did get a lot of attention.