Bad Jealousy issues 😥

So me and my bf have been dating for about 4 months and I have really bad jealousy issues.Ive only had one bf before him and I had jealousy issues with him as well.Basically my boyfriend had a lot of friends and they always wanna hang out with him...And idk why but I just get super jealous and mad when hed rather hang with his friends then me😣Idk why im like this ...And now he has a new job where he works with his friend and he hangs out with him after work everyday then comes to my house around 1am I guess to "hang" with me but he just falls asleep...Idk we do hang out everyday but idk why I feel jealous all the time.We've kinda already talked about it and he just says he doesint wanna lose his friends but he has to hang with them everyday?