We want to thank Raum at My Reading Lounge for asking us to write this article and for her very appreciated support since we started our service. She has a series of Writing Labs posted, and we urge you to check out her site.
Yes, betas can love, too. A good beta should comment on all the little details that seem off, while giving you some much needed love and care for the baby that took you hours to birth. Your chapters should be filled with red marks, not only commenting on grammar, but also on the fabulously constructed sentences, the intriguing details, and that awesome character flaw you gave your heroine. The biggest reason for betas not to show this love is simply obvious grammar errors every writer should be able to avoid.