He feels neglected

My SO says recently he just feels like I'm not bothered. Like I'm not giving him as much attention or somethings not right. I have spent half of my months wages in 48hrs trying to treat him and do things and go places and now he has said this I feel like it was pointless. I don't know what to do to make him feel loved, he has just seemed really down the past few days and I don't know what I'm doing wrong