I hope you grow to like him. PHOTOS!!
I had a Betta fish about 15 years ago. I ended up loving that stupid thing. I think he was precocious to be honest, but he knew me and would follow me around his tank. He'd come and swim about my hand, gently nibbling when I was rearranging the plants/rocks in his tank. He'd swim to the surface when I approached and take food from my fingers. He'd even let me pet him (I know it's not good to). I bought him a 5 gallon also, and even eventually a heater and filter. He lived for a short time without either. But the filter and heater made me feel safer with him. I used to put rocks (for tanks) in different configurations for him, he'd swim all around exploring, and often would end up using them as a bed or hiding place.
I took him (in a big gulp cup) all the way from Utah to Nevada! He came into the restaurants to eat with us (didn't want him to freeze outside) on the trip. I was so sad when one day he managed to leap from his tank during a cleaning and broke his swim bladder. I really missed that fellow.
I've also had other Betta's that were just fish. Maybe you've got one like my special boy that will bring you peace and pleasure.
Keep him close to where you are a lot. I think they also enjoy our company.