Am I asking too much?

How does your S.O. help you when you are feeling insecure or just want some reassurance?

For example: Ive put on a little weight recently or sometimes Im feeling a little low about myself. And sometimes I playfully ask my boyfriend of about 4 years "do you love me?" He says yes of course and I ask "why?" And then he just gets very annoyed and will sigh deeply and say " do I really have to say a reason?" And Ill explain that Im feeling a bit moody or insecure and that it would be nice to hear more than just the usual "i love you" . Then he says " I already tell you the reasons all the time why dont you just believe me?" and he will never say much he just guilt trips me about asking for a little extra.

If Im only doing this once every 2 months is that too needy?

Does it make sense to just need a bit of extra verbal love every now and then?

How do should I handle him basically guilt tripping or mocking me about this?