relationship problems

so this is my first time posting on here and I'm in need of some advice from you ladies. absolutely no rude comments please! so me and my bf have been together almost 5 years we have two kids together..a 3 year old and 1 year old.... now my problem is that we don't have sex like at all. its to the point where I don't even touch him anymore or even try to have sex with him anymore due to fear of being rejected . when I try I get not tonight or some type of excuse of why we can't. I have asked him if he cheating or seeing someone else but he always says no that he don't have time for another relationship and blah blah blah. I really don't see our relationship lasting much longer because of this.. I love him alot but I just don't know what to do anymore so any advice on what I could say to him or whatever would be appreciated..

AND ONCE AGAIN FOR YOU RUDE BITCHES IN THE BACK ROW NO FUCKING RUDE COMMENTS PLEASE!

**for the few people who have commented I have tried to talk to him about this before ( a few times.. we have even gotten into a few arguments over it. he just says he isn't worried about sex... he's 23 and I'm 25 i just don't know what to do. I will also be showing him this when I have had enough responses

**I really thought more then 4 people would comment😢😢maybe the relationship is just over.