Make a magic loop. Chain 4.
In the loop: 2 triple crochet, 3 double crochet, chain 1, 1 triple crochet, ch 1, 3 double crochet, 2 triple crochet, chain 4.
Pull the loop to tighten the center of the heart. Slip stitch in the center of the heart and fasten off.
Weave in the ends in the back of the heart.