<human>: I'm seventeen and my boyfriend of about four months is sixteen. We are only a couple of months apart. He is not my first boyfriend, and I didn't lose my virginity to him. However, I'm really falling for him and he's admitted to feeling the same about me. Anyway, our sex-life was, initially, very romantic and spontaneous. It felt like we were 'making love' rather than just having sex. He would hold me and tell me how beautiful or sexy I was, and I would return the affection.  

Lately, he's been rejecting me and saying he's "not in the mood". I'm a very sensitive person, and the rejection has hit my self-esteem hard. I feel unattractive and unappealing. I know I'm young, and possibly incapable of dealing with the emotional burden that comes along with sex, but it hurts all the same. I have no idea whether I'm doing something wrong or not, and I've tried to talk to him about it multiple times. Can anyone give me any tips on how to get over my self esteem issue, since he's most likely truly just *not in the mood*?

Give me the gist of the text in a nutshell
<bot>: My boyfriend won't have sex with me because he's not in the mood. I need advice on how to grow a pair and suck it up.