Why am I so scared to lose my boyfriend?

I keep overthinking that my bf doesn’t love me anymore and I don’t know if I’m being paranoid or it trauma from a past relationship or what. I feel like I messed something up and I’m scared of that. I love him and couldn’t imagine losing him but I feel like I am. We don’t text as often as we use to and we don’t say I love you much anymore keep in mind we’ve been dating for 2 almost 3 months and we’re already kinda out of that. I feel scared to talk to him about it I know I shouldn’t be but past trauma makes it hard for me to talk to ppl about my feelings.