Sometimes I feel like my boyfriend doesn't love me

It doesn't help that we're in a long distance relationship from two different countries. But I'm not sure if this is only a cultural thing or I'm just really insecure. I guess we have different expectations in dating and relationships too. Men in my country, or at least my experience with past local boyfriends, tend to be very sweet and affectionate, call/text all the time, very loyal and devoted to you. I am like that myself so I kind of expect the same in return. But he seems to be nothing like that, and it's been the cause of some fights and frustration between us. He's loyal and responsible but admittedly not very affectionate at all.

But I guess I'm also really insecure with myself. I sometimes feel he's too good for me, and so he could easily leave me for someone else maybe in his own country. He has many friends and goes to the gym while I don't have/do any of that. I tend to keep to myself and stay at home (I'm quite the introvert). I wish I could change myself to be more attractive and desirable.