hey itstopsnow
i hear you asking two questions:
I just wonder if he will ever grieve me to any level of normal grieving.
i remember my third month. it wasnt pretty. i was a basket case, and wondering the same thing (youre not a basket case for wondering the same thing). your shock and hurt at his apparent lack of grieving are well founded and something i think most of us struggle with (i particularly did). the answer is complex, complicated, depends on the person, and its simplest to say that he will likely grieve very differently than you. do "they" think about us at all? well sure. people with BPD do not literally forget that others ever existed. to what extent they think about us, grieve, feel sadness, regret, or the extent they may go to to avoid those things, really depends on the person.
Is it normal to feel this anxious or upset still?
if youre talking purely in a linear sense, i think the answer is yes. you need only read the stories and progress of others. youre certainly not alone in struggling tremendously at this early stage . we have support groups for this kind of stuff
reading between the lines, i hear you suggesting perhaps there is something wrong with you, or your grieving process, that you feel this way. you feel conflicted about missing "the ass". there is a lot to be said for recalling the serious flaws and incompatibilities of our partners, especially if we are placing them on a pedestal, to balance things out, however, i found it tremendously freeing to accept my feelings (i missed her) than to tell myself i was wrong for feeling them. feelings can in and of themselves never be wrong, they just exist. they arent the same as facts, but the fact is we feel them . your partner had good qualities (one assumes), you had real feelings for him, and you spent a great deal of close time together. is it normal to grieve that? the answer is yes

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be kind to, and patient with yourself, itstopsnow. try to let yourself feel and grieve with freedom, without invalidating your own feelings, or by comparison to how he is grieving. it takes time to grow
from Victim to Survivor to Thriver