Why would a fuck buddy/FWB get jealous?

Anonymous
I’m seeing someone (about 1 year) that always thinks I’m seeing other people. He says i do things that make him not trust him.

He ask me personal question about my family and job. Sometimes he mentions that he would like to have a family with me

He once blocked me because he said that all we do is have sex and because I nag him (which I do nag lol). However, when we make plans to go out they never follow through.

i once asked him about being in a relationship and he said he wasn’t ready until he find a stable and secure job.
Updates
+1 y
Could he have commitment issue? When we first started talking he said his ex girlfriend left him.
Why would a fuck buddy/FWB get jealous?
6 Opinion