Lehmannâ€™s Arsenal return was humiliating for Almunia after the pair had publicly fallen out during their first spell together at the club.
But 35-year-old Almunia insists he has now settled his differences with the German and only wishes well to all his old colleagues, team-mates and even the Arsenal fans who mocked and jeered him.
â€śI have my opinion about what happened when Jens came back and I know the truth, but I donâ€™t want any trouble now â€“ I have moved on,â€ť Almunia told the Sunday Mirror.
â€śI guess the boss was angry with me, but I never asked him or spoke to him about it.
â€śBut I havenâ€™t got any problem with Jens. We have a great relationship now, which is strange.
â€śJens was very competitive on the pitch and in training, sometimes too much. But off the pitch he is a lovely person and our relationship ended well.
â€śIt wasnâ€™t a good moment for me when the Arsenal fans jeered me, and the end was very tough.
â€śBut now I have left, all I have in my heart is good memories and good thoughts for Arsenal, the manager, the players and the fans.
â€śI would love to go back there with Watford. That would be my dream.â€ť