It was the week of Valentine’s Day and love was in the air. You know what wasn’t in the air? The ever upbeat bullish sentiment of retail investors in mid-caps and small-caps. Portfolios of investors turned red as roses as the Nifty Midcap 150 index lost 7.4 per cent and the Nifty Smallcap index 9.6 per cent just in the week gone by. From their respective 52-week highs, the indices are down 18.5 per cent and 22.3 per cent.