Alex is kind and thoughtful, but not particularly brave. He has a crush of Emiliana which she reciprocates.
Alex had a crush on Emiliana for some time before she became a servant. A short time after her birthday, Alex asked her to talk with him after class because he had a present for her. When she arrived, he revealed that he had wanted to ask for Cisco's blessing of their relationship before asking her out. When pressured by Cisco, he admitted that he had been afraid that without Cisco's permission to date her Cisco would beat him up. Cisco then said that he did not approve but that it was not his decision and that he would not punish Alex. Emiliana chose to accept his offer, pointing out that he was everything she wanted in a boyfriend and that she didn't need him to be brave.
He never saw Emiliana after her mutation ability first manifested, and what his reaction will be when he sees how her appearance has changed is unknown.