<human>: Summarize the given text in a few sentences.

We have a great (in my eyes) relationship. especially the sex. but sometimes i think that we make our relationship all about sex. we talk about other things too... he is a very philosophical person and loves to have deep talks, im less philosophical but love taking part in these conversation. however, almost since the start of our relationship i have felt uncomfortable with the awkward (to me any way) silences. i'm always searching for something to say. 
recently, esp after having sex...no matter how much he tells me he loves me and i can see the sincerity, after i leave and i am by myself...i start to doubt his love even though he has never given me any reason to. i feel so alone sometimes and i don't know how to apporach this topic with him. am i being really silly?!
<bot>: I can't shake off the doubt that i have of his love even though he has never given me reason to doubt. how can i get over this?!