My boyfriend likes talking and sex chatting with other girls more than me?

i have been with him from past 5 years and we had a good relationship until we shifted in together..coz I never used to ask him questions and I was not possessive.even if at times I was jealous he handled me with love and at that point I used to feel more for him..we used to joke if I showed him my jealously but its been 2 years now I see him more attracted toward other girls..i feel he is going away.he plans out things with me now too but I don't feel the same passion left in our relationship.may be you people might feel that I am insane and hence I am trying to work out my relationship.i have saw his sex chats and flirty messages to other girls and I have not uttered him a single word...few weeks ago on my birthday he gifted me something very precious,close to my heart..he cares for me and I am confused that if he loves me so much why he want other girls,may be I lack somewhere but he should tell me..about sex chat today for the first time he texted me something that initiated sex chat and I feel that text was not for me and he later realized that's me and continued doing that so that I don't get suspicious of him..i am giving him lot of space,i don't call him,i don't text him much Because in past I did so much that he was pissed off with me but now too after 6 months after trying hard to impress him doesn't call me and text me as he used to do earlier..i don't know what should I do because whenever I meet him and see him I feel very angry Because I remember his text and calls to girl which is not normal.i really want to work on me and I want him Because I know he loves me and its just frustrated part of him that he is flirting and sex chatting with other girls,so that he can feel good.please help and please don't suggest me to breakup.how can I satisfy him?i don't want to confront him about reading his texts because he will feel more distrusted and will make situation worse.please help.
My boyfriend likes talking and sex chatting with other girls more than me?
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