RE: I regret getting a puppy and I don't know what to do.
If you really cannot stand the puppy and has no time and affection for caring, I would suggest that you convince your boyfriend to give the puppy to somebody who would love to have it.
I was born and raised in a cramped apartment and the several dogs we had were for the purpose of being guard dogs tied in the garage. When I married, my husband's sister gave us a puppy. My husband named her Jedi. I would see my husband bathing the puppy and ridding it of ticks. But I seemed not to have any liking for dogs. After 2 weeks with us, Jedi got sick of diarrhea. In 2 days time, she got thin and had difficulty eating. My husband looked forlorn in assessing the situation when I arrived from work. That was the first time I handled Jedi. The puppy kissed me and I wonder what got into me. I felt something inside, maybe pity for the sick puppy. And then a cat was seen in the backyard and Jedi ran after it. Since she was sick, she felt very week after the failed chase.
I suggested that we bring Jedi to a vet. After estimating the cost, my husband agreed. The vet diagnosed our puppy and had her confirned for one night. When we were outside the vet's clinic, I could hear Jedi's cries. That made me cry too so I went back inside just to take another look at her. I thought she was dying. Fortunately, she was well on the next day and she was wagging her tail upon seeing me. That was the start of my love affair with dogs.